What is the difference between a prokaryotic cell and a eukaryotic cell?
Answers
Answer:
Size is 0.1- 5.0 um Size is 5-100 um
Nucleus is absent Nucleus is present
Membrane-bound nucleus absent. Membrane-bound Nucleus is present.
Explanation:
here are some
Answer:
One difference is that prokaryotic has a membrane and a nucleus but on the other hand a eukaryotic cell's don't have one
Explanation:
Glad I could help! <3
Related Questions
The laboratory analysis of a blood or urine sample to determine how much of a certain nutrient is present in the sample is an example of a(n)?
Answers
Osmolality tests is performed to determine the level of a certain nutrient present in the blood and urine.
What is osmolality test?
Osmolality tests measure the level of certain substances in blood, urine, or stool.
The level of glucose(sugar), urea( waste product made in the liver), sodium, potassium, and chloride are measured in osmolality test.
Osmolality test is also performed to check the balance between water and certain chemicals in blood.
Osmolality test also done to diagnose dehydration .
Therefore,osmolality test is done to determine the level of a certain nutrient in blood or urine sample.
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FILL IN THE BLANK.The acceptor ___ and the ___ loop are the two functional ends of tRNA.
Answers
The acceptor stem and the anticodon loop are the two functional ends of tRNA.
tRNA, or transfer RNA, is a crucial component of protein synthesis in living cells. It is a small RNA molecule that acts as a translator between the genetic information encoded in DNA and the amino acids that make up proteins. tRNA carries specific amino acids to the ribosomes, where proteins are synthesized. It does so by recognizing and binding to specific codons, which are three-letter sequences on messenger RNA (mRNA). Each tRNA molecule has a unique anticodon that pairs with the corresponding codon on the mRNA, ensuring the correct amino acid is added to the growing protein chain.
The structure of tRNA includes a cloverleaf-shaped secondary structure with specific regions critical for its function. One end of tRNA binds to the corresponding amino acid, while the other end carries the anticodon. This adaptability of tRNA allows it to recognize multiple codons that may code for the same amino acid, a phenomenon known as degeneracy in the genetic code.
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The macromolecules depicted in the image
below make up a barrier that surrounds the outside
of all cells. What type of macromolecule is
pictured?
a. Protein
b. Cellulose
c. Enzyme
d. Phospholipids
Answers
an antibiotic is a type of medication that cures infectious diseases. why does the word antibiotic suggest that these medications would be ineffective against viruses?
Answers
Answer:
An antibiotic treats bacterial infections, not viral ones. For viruses, you would take antiviral medications.
Can some one help me with the natural science lab report it’s on Darwin’s theory with the different gallapos beak size, I will give brainliest!!!
Answers
Answer:
The basic principle of Darwinism is "survival of the fittest". Darwin's theory stated that all species of an organism develop through the natural selection of small, inherited variations in organisms that increase the individual's ability to compete, survive, and reproduce in the wild.
Darwin's trip to the Galapagos Islands actually was the beginning of his Social Darwinism Theory. During his visit to the islands, Darwin noted that the unique creatures were similar from island to island, but well-adapted to their environments. This led him to ponder the origin of the islands' inhabitants.
Darwin's finches (the Galapagos beaks) are considered to be the world’s fastest-evolving vertebrates. This is because their appearance and behavior quickly adapt to the closed and rapidly changing environment on the Galapagos Islands.
You can test a hypothesis by conducting an experiment.
True
False
Answers
Answer:
true
Explanation:
Answer:
true
Explanation:
an experiment will tell you if your hypothesis was correct or not
Why is active listening an effective part of communication?
Answers
Answer: Active listening is an important part of your communication skill set because it encourages openness, honesty, and success. When you pay attention to your conversation partner, you show that person they are being heard, thus building trust and making that person feel like their words matter to you.
Explanation:
NOT MY WORDS! BUT I HOPE It HELPS!!!!
Answer:
Active listening is an important part of your communication skill set because it encourages openness, honesty, and success. When you pay attention to your conversation partner, you show that person they are being heard, thus building trust and making that person feel like their words matter to you.
not my words
What is the independent variable
Answers
how can liquid be drawn into a pipette safely
Answers
Answer:
A. by squeezing and releasing a bulb attached to the wide end of the pipette
Explanation:
A. by squeezing and releasing a bulb attached to the wide end of the pipette
PLZ ANSWER ASAP I NEED HELP will mark brainliest >_
Peter is complaining of stomach pain and constant hunger. Peter’s doctor diagnoses him with a worm infection. Peter feels hungry because the worm is absorbing food from his intestines.
Peter most likely has an infection from a(n)
tapeworm.
leech.
planarian.
marine worm.
Answers
Answer:
A) Tapeworm
Explanation:
got it right on edge nuity
Peter is complaining of stomach pain and constant hunger as he was diagnosed with a worm infection.
Peter feels hungry because the tapeworm is absorbing food from his intestine as tapeworm begins to feed off your body's nutrients to grow once it invades the body.How tapeworm infection occurs?Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae.When tapeworm hatches and attaches itself to your intestine, it starts feeding off body's nutrients causing increase in apatite (hunger increases).It grows by reproducing proglottids ( chain looking body part) and the cycle continues.Planaria upon causing infection feeds on blood cells hence can not cause apatite.Leech and marine worm can not invade the body like tapeworm and planaria.To learn more about tapeworm infections:
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What the definition of Animal Systems
Answers
Answer:
The animal systems pathway includes occupations related to the raising and caring of animals and developing more efficient ways of producing and processing meat, poultry, eggs and dairy products. Workers study genetics, nutrition, reproduction, growth and care of domesticated farm animals.
Explanation:
PLEASE ANSWER ASAP. Thank you. QUESTION: How does knowing how a star forms help an astronomer study the origins of the universe?
Answers
Answer:
Since stars were made from the Big Bang along with the Universe, they contain the properties that make up the Universe. Some stars are made from the remanants of gas that was made there. Stars are made when gas is pulled towards each other with gravity. Therefore, they are also made of properties from space.
The information regarding the formation of the star that helped an astronomer should be explained below.
Formation of the star:The stars should be made from the big bang along with the universe. Also, it comprises the properties where it should be makeup the universe. Few stars should be made from the remnants of gas. Stars should be made at the time when the gas should be pulled towards each other along with gravity. Also, they should be made via the space properties.
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Many nutrient cycles are coupled and changes in one cycle will affect another. This means that a change in the amount of carbon dioxide fixed is intimately affected by the amount of __________.
Answers
Since many nutrient cycles are interconnected, modifications to one cycle will have an impact on another. This implies that the quantity of nitrogen present in an ecosystem has a direct impact on changes in the amount of carbon dioxide fixed.
The movement of substance and energy between living things and the ecosystem's non-living components happens through a mechanism called the nutrient cycle. This happens because once plants and animals ingest nutrients from the soil, they die and decompose, releasing those nutrients back into the ecosystem.
Various Nutrient Cycles
Carbon cycle: It's believed that all living things are mostly composed of carbon.The nitrogen cycle: Nitrogen is necessary for life.The oxygen cycle: Oxygen is a necessary component of every living function.Water cycle or the hydrologic cycle:To learn more about ecosystem click here,
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What is the percent by mass water in calcium chloride hexahydrate?
Answers
Answer:
the answer is 3%
It would be 3%.
Hope this helps!!
>Rijja<
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the primary source of energy for the brain and nervous system under normal conditions is:
Answers
Under normal conditions, the primary source of energy for the brain and nervous system is glucose. Glucose is a simple sugar and an essential fuel for brain function.
Glucose Dependence: The brain is a highly metabolically active organ that requires a constant supply of energy to perform its functions effectively. Unlike other organs, such as skeletal muscles, which can switch between various fuel sources, the brain relies heavily on glucose as its primary energy source.
Glucose Metabolism: Glucose is transported into brain cells (neurons and glial cells) through specialized glucose transporters, primarily GLUT1. Once inside the cells, glucose undergoes a series of metabolic reactions, including glycolysis, the citric acid cycle, and oxidative phosphorylation, to produce adenosine triphosphate (ATP), the energy currency of cells.
Blood-Brain Barrier: The brain is protected by a barrier known as the blood-brain barrier (BBB), which tightly regulates the passage of substances between the blood and the brain. The BBB allows glucose to cross into the brain while restricting the entry of other molecules and substances.
Glycogen Reserves: In addition to utilizing glucose from the bloodstream, the brain also has limited glycogen reserves stored in astrocytes (a type of glial cell).
Ketone Bodies as Alternative Fuel: In certain conditions, such as prolonged fasting or a very low-carbohydrate diet (ketogenic diet), when glucose availability is limited, the brain can partially adapt to using an alternative fuel source called ketone bodies.
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The short region on the X chromosome that plays an important role in X-chromosome inactivation is the
Answers
The short region on the X chromosome that plays an important role in X-chromosome inactivation is the X-inactivation center (XIC).
The process of inactivating one of the two X chromosomes in female somatic cells is known as X-inactivation. This process occurs in response to the sex chromosome disparity between females (XX) and males (XY). The goal is to guarantee that there is no excess gene expression from the X chromosome in females than in males.What is the role of the X-inactivation center?The X-inactivation center (XIC) is the short region on the X chromosome that plays an important role in X-chromosome inactivation.
The X-inactivation center consists of a number of genes that are essential for the formation of the inactive X chromosome. The XIC's most important component is XIST, an RNA molecule that covers the entire length of the inactive X chromosome and causes it to become silenced. Since XIST is transcribed only from the inactive X, it is a crucial determinant of the inactive X's identity.In summary, the short region on the X chromosome that plays an important role in X-chromosome inactivation is the X-inactivation center (XIC).
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To increase memory, the author recommends that a
person
А
get fresh air and exercise.
B
spend time indoors at the library.
С
sleep six hours every night.
D
memorize homework assignments.
Answers
Answer:
Option B and D Best Support The Statement
Explanation:
To Increase yourself in knowledge one must go to the library and of course memorize their homeworks
Una alumna elaboró un cartel para la kermés que se realizó en la escuela. En su cuaderno trazó primero
el diseño de un cuadrilátero irregular, ya que ella buscaba una forma original para su cartel; después, eligió
un color de papel américa y sobre él trazó el mismo diseño, pero más grande; es decir, a escala de la
figura original.
Las medidas de los lados de la figura original son. 4 centímetros, 3 centímetros, 8 centímetros y 11
centimetros. El lado correspondiente al que mide 4 centimetros en la figura original, mide 48 centimetros como
se muestra en la figura siguiente a escala
a) Primero calcula el factor de proporcionalidad usa la relación siguiente para que puedas sacar las otras
medidas
1
K
Y (medida de la nueva figura)
X (medida de la figura original)
Answers
Proportionality is the ratio between two directly proportional quantities. These proportionality constant generally goes on increasing and decreasing at the same rate. The constant of proportionality k is given by k=y/x.
In general , for calculating the proportionality factor the corresponding side in the original figure and the enlarged figure have lengths of 4 cm and 48 cm, respectively. Thus, we have: k = Y/X = 48/4 = 12
Now we can use this proportionality factor to find the enlarged figure:
The side that originally measured 3 cm will : 3 cm x 12 = 36 cm
The side that originally measured 8 cm will : 8 cm x 12 = 96 cm
The side that originally measured 11 cm will : 11 cm x 12 = 132 cm
Therefore, the measures of the sides of the enlarged figure are: 48 cm, 36 cm, 96 cm, and 132 cm.
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9. Explain the benefits and
limitations of each
type of scientific investigation.
Answers
The benefits and limitations of each type of scientific investigation are listed below:-
Benefits:-
A descriptive investigation is concerned more about observations related to natural systems which are recorded through a systematic method of data collection. A comparative investigation do not essentially require control variables since it is not carried in a laboratory.An experimental investigation tends to study the 'cause' and 'effect' relationship between two variables through the use of control variables in order to maintain a constant environment.Limitations:-
A descriptive investigation fails to compare the data collected and establish a causal relationship between the variables.A comparative investigation fails to control the variables that are present naturally and might affect the research.An experimental investigation may sometimes fail to explain real-life incidents since they are based on a hypothesis.To learn more about descriptive investigation here
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Which is the most efficient way to avoid DNA mutations from UV radiation?
Avoid getting X-rays at the doctor’s office.
Avoid protective shields during X-rays.
Avoid UV radiation by wearing sunscreen.
Avoid UV radiation by using a tanning bed.
Answers
Answer:
Sunscreen is the best, and most efficient way to avoid DNA mutations. UV radiation causes thymine dimers in the DNA complex, so limiting UV radiation is key to avoiding DNA mutations.
Explanation:
The most efficient way to avoid DNA mutations from UV radiation is to avoid UV radiation by wearing sunscreen. Thus, the correct option is C.
What is DNA mutation?DNA mutation may be defined as the process that induces sudden, stable, and inheritable changes in the genetic material of organisms through various factors.
The UV radiations are the most potent physical agent that induces DNA mutation. But in order to avoid such kinds of DNA mutations from UV radiation one must be required to be protected from such kinds of harmful radiation with the help of sunscreen.
The UV radiation induces DNA mutations by causing the dimerization of the thymine base, which significantly alters the whole sequence of genetic material.
Therefore, the most efficient way to avoid DNA mutations from UV radiation is to avoid UV radiation by wearing sunscreen. Thus, the correct option is C.
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How is burning a piece of wood a chemical change, while boiling water is not? I don’t get it....well i do but i need a answer.:/
Answers
Answer:
A burning piece of wood is a chemical change, because you alter it, and it turns to ashes, and it is irreversible, where as you can make water cold again
Answer:
youre creating a new substance in a chemical reaction
Explanation:
by boiling water, you arent making anything new. you're just changing the form of the water.
by burning wood, you're inducing a chemical reaction because some new substance is being made with the reactants
When will covid 19 finish?
Answers
Answer:
not sure too
hope it'll end soon
describe the difference between covalent and ionic bonds. give one example of each
Answers
Answer:
Actually, a covalent bond is formed between two non-metals. Electrons are shared between the two atoms in order for them to achieve a full outer shell. Covalent compounds do not conduct electricity. An ionic bond is formed between a mental and a non-metal. Electrons are transferred from the metal atoms to the non-mental atoms to form ions. Ionic compounds conduct electricity when dissolved.
If a dna molecule has a sequence of nucleotides ordered c-t-a-g-g on one of the strands, what would the complementary sequence be on the other strand of the double helix?
Answers
The complementary sequence on the other strand of the double helix would be G-A-T-C-C. This is because in a DNA molecule, cytosine (C) pairs with guanine (G) and adenine (A) pairs with thymine (T).
The complementary sequence on the other strand of the double helix would be g-a-t-c-c. This is because in DNA, the nucleotides always pair up in a specific way: A pairs with T and C pairs with G. So, if one strand has a C nucleotide, the complementary strand must have a G nucleotide. Similarly, if one strand has a T nucleotide, the complementary strand must have an A nucleotide.
Applying this rule to the given sequence of c-t-a-g-g, we can determine that the complementary sequence on the other strand must be g-a-t-c-c. It is important to note that this pairing of nucleotides ensures that the two strands of the DNA molecule are held together by hydrogen bonds, creating the double helix structure.
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How does the cryosphere absorb carbon, and produced?
Answers
Answer: burning of fossil fuels, forest fires (led to an increase of carbon)
Explanation:
How can carbon be absorbed and/or produced in the Atmosphere ?
burning of fossil fuels, forest fires (led to an increase of carbon)
First time doing one of these
Answer:
The cryosphere, which includes ice and snow on Earth's surface, plays an important role in the carbon cycle. Here are some ways in which the cryosphere can absorb carbon:
Snow and ice can directly absorb atmospheric carbon through air-snow/ice gas exchange. Carbon dioxide and other gases dissolve in snow and ice, storing carbon for lengthy periods of time. Dissolved carbon can enter rivers and oceans when snow and ice melt. Carbon can be transported and deposited in marine sediments. Permanentfrost, frozen soil and organic debris, can release carbon dioxide and methane into the atmosphere when temperatures rise. Phytoplankton can thrive from sea ice nutrients. After photosynthesis, these tiny plants' carbon can be carried to the ocean floor and stored in
Sources
Alley, R. B., Spencer, M. K., & Anandakrishnan, S. (2010). Ice-sheet and sea-level changes. Science, 328(5985), 598-599.Grosse, G., Goetz, S., McGuire, A. D., Romanovsky, V. E., & Euskirchen, E. S. (2016). Changes in Arctic terrestrial carbon storage and fluxes in response to warming. Nature Climate Change, 6(7), 624-627.what is the central Nervous system (cns)
Answers
Answer:
the complex of nerve tissues that controls the activities of the body. In vertebrates it comprises the brain and spinal cord.
Explanation:
^
which of the following describe the role of photosynthesis in the carbon cycle.
Answers
During photosynthesis, plants absorb carbon dioxide and sunlight to create fuel—glucose and other sugars—for building plant structures. This process forms the foundation of the fast (biological) carbon cycle.
Explanation:
In all four processes, the carbon dioxide released in the reaction usually ends up in the atmosphere
How does DNA in cells determine an organism's complex traits?
A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism
B. DNA separates into long single strands that make up each part of an organism
C. DNA produces the energy an organism needs in order to grow
D. DNA folds into the nucleus of each of the cells of an organism
PLEASE HELP!!
Answers
Answer:
A. DNA contains codes for proteins, Which are necessary for the growth and functioning of an organism
Explanation:
In 1988, wildfires in Yellowstone National Park scorched 1.4 million acres, approximately 36% of the park. Although many trees, plants, and wildlife were destroyed in that event, the overall effect of the fires was beneficial to the Yellowstone ecosystems. How do forest fires most likely benefit an ecosystem
Answers
Help me please┐(‘～`;)┌
Answers
Answer:
The first one is H0m0zygous.
The second one is Heterozygous.
Explanation:
see answer.