As a part of the life cycle of plants, the plant must begin with an embryo. What statement best describes where the embryo can be found in flowering and non-flowering plants?
Answers
The missing statements are given as follows:
a. In a flowering plant, the embryo is in seeds found in the flower, and in non-flowering plants, the embryo is in seeds found in the cone.
b. In a non-flowering plant, the embryo is in spores found in the stem, and in a flowering plant, the embryo is in seeds found in the flower.
c. In a non-flowering plant, the embryo is in seeds in the leaves, and in a flowering plant, the embryo is in seeds found in the spores.
d. In a flowering plant, the embryo is in spores found in the flower, and in a non-flowering plant, the embryo is in seeds found in the spores.
Answer:
The correct answer is - option a. In a flowering plant, the embryo is in seeds found in the flower, and in non-flowering plants, the embryo is in seeds found in the cone.
Explanation:
Non-flowering plants especially gymnosperms begin their life cycles from the embryo found inside the seeds like the flowering plants however, in gymnosperms these are found in the cone.
In the flowering plants, the embryo is present in the seeds present in the flower that develop into fruits too. Angiosperms are the flowering plants that produce seeds.
Thus, the statement best describes where the embryo can be found in flowering and non-flowering plants.
Answer:
In a flowering plant, the embryo is in seeds found in the flower, and in non-flowering plants, the embryo is in seeds found in the cone.
Explanation:
Related Questions
how are fruits and vegetables made available in the off season
Answers
Answer:
They can preserve food in the cans, in the refrigerator and make them frozen, in the green houses to preserve them in the off season.
This is all how you can preserve food in the off season.
Hope this helps.Good luck ✅.The lengths of a particular animal's pregnancies are approximately normally distributed, with mean u = 255 days and standard deviation o = 8 days. (a) What proportion of pregnancies lasts more than 269 days? (b) What proportion of pregnancies lasts between 243 and 259 days? (c) What is the probability that a randomly selected pregnancy lasts no more than 247 days? (d) A "very preterm" baby is one whose gestation period is less than 237 days. Are very preterm babies unusual? (a) The proportion of pregnancies that last more than 269 days is (Round to four decimal places as needed.) (b) The proportion of pregnancies that last between 243 and 259 days is (Round to four decimal places as needed.) than 247 ays is (c) The probability that a randomly selected pregnancy lasts no (Round to four decimal places as needed.) This event unusual because the probability is than 0.05. (d) The probability of a "very preterm" baby is (Round to four decimal places as needed.)
Answers
(a) Approximately 0.0401 or 4.01% of pregnancies last more than 269 days.
(b) Approximately 0.6247 or 62.47% of pregnancies last between 243 and 259 days.
(c) The probability is 0.1587 or 15.87%.
(d) Since this is less than 0.05, the probability of a "very preterm" baby is less than 0.05. Therefore, "very preterm" babies are considered unusual.
To solve these problems, we can use the standard normal distribution and z-scores.
(a) To find the proportion of pregnancies that last more than 269 days, we need to calculate the area under the normal curve to the right of 269. First, we calculate the z-score:
z = (269 - u) / o = (269 - 255) / 8 = 14 / 8 = 1.75
Looking up the z-score of 1.75 in the standard normal distribution table, we find that the corresponding area to the left is approximately 0.9599. Since we want the proportion to the right of 269, we subtract this value from 1:
Proportion = 1 - 0.9599 = 0.0401
Therefore, approximately 0.0401 or 4.01% of pregnancies last more than 269 days.
(b) To find the proportion of pregnancies that last between 243 and 259 days, we need to calculate the area under the normal curve between these two values. We calculate the z-scores for both values:
z1 = (243 - u) / o = (243 - 255) / 8 = -12 / 8 = -1.5
z2 = (259 - u) / o = (259 - 255) / 8 = 4 / 8 = 0.5
Using the standard normal distribution table, we find the area to the left of z1 (-1.5) is approximately 0.0668, and the area to the left of z2 (0.5) is approximately 0.6915. To find the area between these two z-scores, we subtract the smaller area from the larger area:
Proportion = 0.6915 - 0.0668 = 0.6247
Therefore, approximately 0.6247 or 62.47% of pregnancies last between 243 and 259 days.
(c) To find the probability that a randomly selected pregnancy lasts no more than 247 days, we calculate the z-score:
z = (247 - u) / o = (247 - 255) / 8 = -8 / 8 = -1
Looking up the z-score of -1 in the standard normal distribution table, we find the corresponding area to the left is approximately 0.1587. Therefore, the probability is 0.1587 or 15.87%.
(d) To determine if "very preterm" babies (gestation period less than 237 days) are unusual, we calculate the z-score:
z = (237 - u) / o = (237 - 255) / 8 = -18 / 8 = -2.25
Looking up the z-score of -2.25 in the standard normal distribution table, we find the corresponding area to the left is approximately 0.0122. Since this is less than 0.05, the probability of a "very preterm" baby is less than 0.05. Therefore, "very preterm" babies are considered unusual.
To know more about probability, refer to the link below:
https://brainly.com/question/32320760#
#SPJ11
Which two phrases describe tissues?
A. Are composed of cells
B. Are the basic unit of life
C. Are composed of a single organelle
D. Make up organs
Answers
Answer:
are composed of cells
make up organs
Explanation:
as a summary you can keep in mind that
Groups of cells combine to form tissues , tissues combine to form organ, organs combine to form organ systems.
Se puede afirmar que gracias a la evolución las especies facilito la adaptacion de todos en el planeta
Answers
Answer:
La evolución de la especie ayuda a la adaptación de un organismo.
Explicación:
Se puede decir que la evolución de la especie ayuda a la adaptación de un organismo en el planeta porque la evolución provoca varios cambios en el cuerpo físico de un organismo que conduce a la supervivencia de ese organismo. si la evolución no ocurrió, el organismo no puede sobrevivir en ese entorno y extinguirse, por lo que la evolución ayuda al organismo a adaptarse de acuerdo con el entorno.
An ____________ is when an electrode is inserted directly into the muscle which relays and records the electrical activity of the nerve to determine the health of the muscles and the effectiveness of the nerves connected to them.
Answers
An electromyogram is when an electrode is inserted directly into the muscle which relays and records the electrical activity of the nerve to determine the health of the muscles and the effectiveness of the nerves connected to them.
What is an electrode?An electrode is a device that can be able to conduct electricity. Electrodes could be used for certain medical determinations.
Hence, an electromyogram is when an electrode is inserted directly into the muscle which relays and records the electrical activity of the nerve to determine the health of the muscles and the effectiveness of the nerves connected to them.
Learn more about electrodes::https://brainly.com/question/17060277
#SPJ4
Osteopenia is: A. deficiency of bone tissue. B. excess growth of bone. C. regeneration of bone tissue. D. softening of bone.
Answers
Answer:
A. deficiency of bone tissue.
Explanation:
Osteopenia is when your bones are weaker than normal but not so far gone that they break easily, which is the hallmark of osteoporosis.
Question 1(Multiple Choice Worth 2 points)
(05.06 MC)
If you were a forensic scientist at a crime scene and rat poison was found near a deceased victim, what test would you conduct first?
O Marquis test to check for arsenic
O Scott's test to check for cocaine
O Marsh test to check for arsenic
O Scott's test to check for fentanyl
Answers
A Marsh test to check for arsenic is the first test to conduct at a crime scene and rat poison was found near a deceased victim. Option C
Why should A Marsh test to check for arsenic important?As a forensic scientist, I should know that the presence of arsenic is a component of rat plosion. Therefore if rat poison was discovered near a deceased victim, a Marsh test that help me screen for the presence of arsenic will be my first move.
Arsenic is a very common ingredient in many rat poisons, and the Marsh test is a reliable method for identifying arsenic.
Find more exercises on arsenic ;
https://brainly.com/question/493434
#SPJ1
Which of the following statements about the growth rings of trees is true? Choose one:
A. The color of a tree ring indicates the rate of growth in a given year.
B. The pattern of tree rings of bristlecone pines provides a tree-ring record going back more than 10,000 years.
C. Dendrochronologists are, in a sense, paleoclimatologists.
D. A thin ring indicates a warm, wet year; a thick ring represents a cold, dry year.
Answers
Trees have growth rings, and a small ring denotes a warm, moist year while a large ring denotes a cold, dry year. Hence (d) is the correct option.
The spring and early summer wood is represented by the light-colored rings, while the late summer and autumn wood is represented by the dark-colored rings. One year of the tree's life is equal to one bright ring plus one dark ring. Wide or narrow rings' underlying patterns capture the variations in a tree's growth from year to year. As a result, in addition to the age of the tree, the patterns frequently provide information about the weather at the tree's origin. By counting a tree's annual rings, which are actually the xylem rings, Krishna was able to establish the age of the tree.
To know more about growth rings, click here:
https://brainly.com/question/1537698
#SPJ4
The statement there is always a peripheral synapse between the cns and the effector organ is __________.
Answers
Hydrogen atoms eventually condense and fuse together to form _______.
Answers
Answer:
Fusion is the process that powers the sun and the stars. It is the reaction in which two atoms of hydrogen combine together, or fuse, to form an atom of helium. In the process some of the mass of the hydrogen is converted into energy. ... The sun and stars do this by gravity.
Corn snakes show variety in their skin color pattern. While the complete genetics of corn
snake color are complex, the most common colors on normal corn snakes—red and
black— are each coded by one gene.
For the red gene, the allele for the presence of red pigment (R) is dominant and the allele
for the absence of red pigment (r) is recessive. Likewise, for the black gene, the allele for
the presence of black pigment (B) is dominant and the allele for the absence of black
pigment (b) is recessive.
a. Draw the Punnett square for the cross of a snake that is homozygous dominant for
the red color with a snake that is heterozygous for the red color. What percentage
of the offspring is expected to have red pigment in their skin?
b. Draw the Punnett square for the cross of two snakes that are heterozygous for the
black color. What percentage of the offspring are expected to have black pigment
in their skin?
c. The parent snakes in part (b) that are heterozygous for black color are both
homozygous recessive for the red gene. Each parent has genotype rr for the red
gene. Based on this information, what percentage of their offspring are expected
to lack both the red and black pigments in their skin? Explain your reasoning.
Answers
Answer:
a. Punnett square for the cross of a snake that is homozygous dominant for the red color (RR) with a snake that is heterozygous for the red color (Rr):
```
| R | R |
----------------
| RR | RR | RR |
----------------
| Rr | Rr | Rr |
```
In this cross, all the offspring (100%) will have the red pigment in their skin because the presence of red pigment (R) is dominant over its absence (r).
b. Punnett square for the cross of two snakes that are heterozygous for the black color (Bb):
```
| B | b |
----------------
| BB | BB | Bb |
----------------
| Bb | Bb | bb |
```
In this cross, 75% of the offspring are expected to have black pigment in their skin (BB and Bb genotypes), and 25% of the offspring are expected to lack black pigment (bb genotype) due to the absence of the dominant black allele (B).
c. Both parent snakes are homozygous recessive for the red gene (rr), meaning they lack the red pigment. Since the red gene and black gene are independent of each other, the absence of red pigment does not affect the inheritance of the black pigment. Therefore, the percentage of offspring expected to lack both red and black pigments in their skin would be the same as the percentage of offspring lacking the black pigment (bb genotype) in the Punnett square from part (b). Thus, 25% of their offspring are expected to lack both the red and black pigments in their skin.
What are the functions of the organelles labeled here as I and III? Select
all that apply.
..
Protein assembly
Protein synthesis
Energy transformation
Energy production
VI
Answers
Organelle I is the ribosome, which is responsible for protein synthesis. Organelle III is the mitochondrion, which is involved in energy transformation and energy production through cellular respiration.
Organelle I, which is labeled as the ribosome, is responsible for protein synthesis. Ribosomes are involved in the process of translation, where they read the mRNA (messenger RNA) and assemble amino acids into polypeptide chains, ultimately forming proteins.
Organelle III, which is not specified in the question, cannot be identified based on the provided information. However, if we assume it refers to mitochondria (as labeled with Roman numeral VI), then its function is energy production.
Mitochondria are the powerhouses of the cell and are involved in cellular respiration, a process that generates ATP (adenosine triphosphate), the primary energy currency of the cell.
Therefore, the correct functions for organelle I (ribosome) are protein synthesis, and for organelle III (mitochondria) are energy production.
For more such answers on Protein synthesis
https://brainly.com/question/13022587
#SPJ8
A student working on their science experiment places four potato squares into solutions of Iodine and measures how far the Iodine diffuses into the potato. The measurements are: 2.1 mm, 1.8 mm, 2.3 mm, and 2.2 mm. What is the average diffusion distance?
Answers
Answer:
The average diffusion distance is 2.1 mm
Explanation:
Given
Diffusion distance of the four potato squares are;
\(Potato 1: 2.1 mm\\Potato 2: 1.8 mm\\Potato 3: 2.3 mm\\Potato 4: 2.2 mm\)
Required
Average Diffusion Distance
To calculate the average diffusion distance; we simply calculate the mean of the student recordings
Mean is calculated as thus;
\(Mean = \frac{\sum x}{n}\)
Where x is the individual distance of the potato squares
\(\sum x = 2.1 mm + 1.8 mm + 2.3 mm + 2,2 mm\)
\(\sum x = 8.4mm\)
n is the number of potato squares
n = 4
\(Mean = \frac{\sum x}{n}\)
\(Mean = \frac{8.4 mm}{4}\)
\(Mean = 2.1 mm\)
Hence, the average diffusion distance is 2.1mm
For scientists to figure out how old the layers of rock are, the rock layers are expected to have been created in what position?
Answers
According to the principle of superposition, each layer of sedimentary rock in a series of unreformed rocks is older that the one it and younger than the layer below it.
A rock is what in chemistry?Rocks are solids made up of mineral grains that fit together. Chemicals called minerals are found naturally in the crust of the Earth. A compound is anything created by a number of elements that are chemically linked together in a certain atom-to-element ratio.
How does a rock combine?A solid combination of crystals from one or more metals, or from organic material, is called rock. As according their formation, composition, and texture, rocks are categorized.
To know more about Rock visit:
https://brainly.com/question/1158219
#SPJ1
What occurs inside of a cell while it is performing the process of respiration? (1 Point)
The negative charge inside of the cell is used to increase the concentration chemicals inside of the cell
Sugar is broken down to generate adenosine triphosphate (ATP) molecules that are used for energy
Light reactive chemicals combine carbon dioxide (Co2) and water to form glucose molecules that are stored as
food[object Object]. Incorrect answer
The cell membrane forms around air bubbles to create a vacuole that is used to separate the oxygen from the
rest of the air
Answers
Adenosine triphosphate (ATP) molecules are produced from the breakdown of sugar and are used as an energy source.
What is respiration explain?The physical processes (such as breath and diffusion) via which a living creature acquires the oxygen it wants to make energy and get rid of waste gases include the act or activity of breathing (as carbon dioxide)
What is importance of respiration?The primary goal of breathing is to deliver oxygen to the cells at the a rate sufficient to meet their metabolic requirements. Through the skin's circulation, oxygen is transported from the lungs to the tissues through this process.
How many types of respiration are there?There are two varieties of breathing: The process of aerobic respiration occurs when there is oxygen present. Absence of oxygen results in anaerobic respiration.
To know more about Respiration visit:
https://brainly.com/question/18024346
#SPJ13
HELP ASAP! What do plants need? Why do they need these items?
Answers
Answer:water, sunlight, and nutrients
Explanation:
These are all needed to help the plant go though photosynthesis
explain how the circulatory system and the respiratory system support the process of cellular respiration
Answers
The circulatory system and the respiratory system work together to support the process of cellular respiration, which is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. Here's how they do it:
Respiratory System: The respiratory system is responsible for bringing oxygen into the body and removing carbon dioxide. Oxygen is inhaled through the nose or mouth and then travels down the trachea, which branches into the bronchi and bronchioles. These structures eventually lead to the alveoli, which are small air sacs in the lungs where gas exchange occurs. Oxygen diffuses across the walls of the alveoli and into the bloodstream, while carbon dioxide diffuses out of the bloodstream and into the alveoli to be exhaled.
Circulatory System: The circulatory system is responsible for transporting oxygen and nutrients to the cells and removing waste products, including carbon dioxide. The heart pumps oxygen-rich blood from the lungs to the rest of the body through the arteries. Oxygen diffuses from the capillaries into the cells, where it combines with glucose to produce energy in the form of ATP. As the cells use oxygen, they produce carbon dioxide as a waste product. The carbon dioxide diffuses into the capillaries and is transported back to the lungs to be exhaled.
Together, the respiratory and circulatory systems ensure that oxygen is delivered to the cells and carbon dioxide is removed from the body. This process supports cellular respiration by providing the necessary oxygen for the reaction to occur and by removing the waste product of the reaction. Without the respiratory and circulatory systems, cellular respiration could not occur, and the cells would not have the energy they need to function.
What is the function of this molecule?
Answers
Answer:
All biological functions depend on events that occur at the molecular level. These events are directed, modulated, or detected by complex biological machines, which are themselves large molecules or clusters of molecules. Included are proteins, nucleic acids, carbohydrates, lipids, and complexes of them.
3. List 3 differences of macromolecules:
Answers
Answer:
A macromolecule is a very large molecule, such as a protein. They are composed of thousands of covalently bonded atoms. Many macromolecules are the polymerization of smaller molecules called monomers.
Explanation:
pa brainlies po
FILL IN THE BLANK. after the centromeres separate during mitosis, the sister chromatids, now called _______, move toward opposite poles of the spindle.
Answers
After the centromeres separate during mitosis, the sister chromatids, now called daughter chromosomes, move towards the opposite poles of the spindle.
Mitosis is the process by which somatic cells divide to produce two genetically identical daughter cells. The different stages of mitosis are prophase, metaphase, anaphase, and telophase. During prophase, the chromosomes become condensed and visible, and the spindle begins to form.
The nuclear envelope begins to disintegrate, allowing the spindle fibres to attach to the kinetochores located at the centromeres of the chromosomes. During metaphase, the chromosomes align at the equatorial plate, the spindle fibers attach to the kinetochores at the centromeres, and the sister chromatids of each chromosome are under tension and ready to separate.
This is the phase where the chromosomes are located at the center of the spindle apparatus.During anaphase, the spindle fibers begin to shorten, pulling the sister chromatids apart towards opposite poles of the spindle. The sister chromatids are now referred to as daughter chromosomes.
During telophase, the daughter chromosomes reach their respective poles, and the nuclear envelope reforms around each set of chromosomes. Cytokinesis, the physical separation of the two daughter cells, occurs during telophase as well.
To know more about mitosis click here:
https://brainly.com/question/29776367
#SPJ11
How volcanic rocks form?
Answers
When magmas reach the Earth's surface and cool and crystallize in subaerial or subaquatic conditions, the resulting rocks are called extrusive or volcanic. Igneous rocks are made up of minerals from the silicate group.
What are igneous rocks?Igneous or magmatic rocks are those that form when magma cools and solidifies.
If cooling occurs slowly below the surface, rocks with large crystals called plutonic or intrusive rocks are formed, while if cooling occurs rapidly above the surface
The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses.
Igneous rocks occur in a wide range of geological settings: shields, platforms, orogens, basins, large igneous provinces, extended crust and oceanic crust.
Draw a food web representing the flow of energy in the ecosystem. Be sure to include all of the organisms on the list. If necessary, research each animal's diet to determine its place in the food web. (Optional: upload a photo or file of the food web you created.)
Answers
Answer:
Explanation:
k
I dont know these can someone help
Answers
what is an example of dehydration synthesis? options: converting a triglyceride into cholesterol converting a protein into amino acids converting monosaccharides into glycogen converting water molecules into hydrogen and hydroxyl ions
Answers
Conversion of monosaccharides into glycogen is an example of a dehydration synthesis.
The correct option is option c.
Dehydration reactions can basically be defined as the chemical reactions in which a water molecule gets eliminated from the reactant molecule. The process of the combination of two molecules along with the elimination of the water molecules is known as the dehydration synthesis.
Macromolecules like complex carbohydrates, proteins as well as nucleic acids are all examples of the polymers which are formed as a result of the dehydration synthesis. Monomers like glucose can join together with one another in different ways in order to produce a variety of polymers like glycogen.
To know more about dehydration synthesis here
https://brainly.com/question/14241111
#SPJ4
BRAINLES
plz help thank you
Answers
Answer:
1.70%
2.25%
3.5%
hope this helped:)))))))))))
Match the terms to their definition.
the number of individual
organisms born into a population in a given year
the movement of individuals out of a population
the number of individual organisms that die in a population in a given year
the movement of individuals into a population
Answers
Match the terms to their definition
The number of individual organisms born into a population in a given year is called birthrate.The movement of individuals out of a population is called emigration.The number of individual organisms that die in a population in a given year is called deathrate.The movement of individuals into a population is called immigration.Hope it helps you! ＼(^ᴥ^)／
Answer:
1 4 3 2
Explanation:
Where do substrates bind to the enzyme?
A. substrate
B. activation energy
C. active site
Answers
Answer:
C. active site
Explanation:
Substrates bind to the enzyme at active site which is where the catalytic action happens.
Hope this helps, thank you :) !!
sometimes prolonged excessive exposure to high hormone concentrations causes a phenomenon known as:___
Answers
Sometimes prolonged excessive exposure to high hormone concentrations causes a phenomenon known as downregulation.
Downregulation occurs when a cell is repeatedly exposed to high levels of a particular hormone, causing a decrease in the number of receptors on the cell surface. This reduction in receptors decreases the cell's sensitivity to the hormone and can ultimately lead to a decrease in the cell's response to the hormone.
Downregulation can occur in response to several different hormones, including insulin, thyroid hormone, and cortisol. The phenomenon is often observed in cases of hormone therapy, where high doses of a hormone are given to individuals who have low levels of the hormone naturally. In such cases, the body may respond by downregulating the number of receptors to protect itself from excessive hormone exposure.
Overall, downregulation can have significant implications for hormone signaling and may impact an individual's response to hormone therapy or hormone-related diseases.
To know more about high hormone concentrations click here:
https://brainly.com/question/17073953
#SPJ11
What do organizations install to detect and stop cyberattack threats at the point of attack?
a) biomeme technologies
b)spyware malware detection software
c) disaster recovery plans
d) backup protocols
Answers
Organizations install spyware malware detection software to detect and stop cyberattack threats at the point of attack. The correct option is b.
What is spyware malware detection software?A program that prevents, finds, and removes malware from a computer system is referred to as spyware malware detection software. This software is critical in detecting and preventing cyber attacks that threaten businesses, government agencies, and other organizations.
Spyware malware detection software can detect and eliminate a wide range of malware types, including spyware, adware, viruses, Trojans, and other types of malicious software. This software can be used to detect and protect against all forms of cyber threats, including advanced persistent threats (APTs), malware-based attacks, and phishing attacks.
The software works by scanning a computer system for malware, identifying the malware, and then removing it from the system. Many spyware malware detection software programs have real-time protection, which means they continually monitor a system for threats and immediately detect and eliminate malware as soon as it is detected.
Many organizations also use additional cybersecurity measures such as firewalls, intrusion detection systems (IDS), intrusion prevention systems (IPS), and data loss prevention (DLP) systems to protect against cyber attacks. However, spyware malware detection software is still an essential tool for detecting and stopping cyber threats at the point of attack.
Hence, the correct option is b.
For more such questions on Cybersecurity.
https://brainly.com/question/27831079#
#SPJ11
Describe what the observations imply about how starlings are affected by flocking behavior in the wild and explain how evidence suggests that flocking behavior provides an advantage to starlings.
Answers
Answer:
Explanation:
Starling is a bird from the family sturnidea. It originated from Europes and Asia from where it introduced to other part of the world. They lives in the wild.
Starling birds moves in group or tight flock from a place the other. They usually form a flock called murmuration where they move together in group following each other to avoid predation.
Starling have been able to survive on the wild with this behaviour. They stir above the average height of their neighbor in a coordinated manner preventing them from being caught by preys.