in hemiptera (true bugs), the mandibles and maxillae are modified into: group of answer choices palps proboscis siphon sensory structures
Answers
The mandibles and maxillae of hemiptera (true bugs) are modified into a proboscis.
Hemiptera (real bugs) have transformed mandibles and maxillae into a proboscis, a long, tubular device used for piercing and sucking up liquid meals. The labium and the maxillae make up the two components that make up the proboscis. The food source is punctured and the liquid is drawn up via a long, flexible tube called the labium. The labium is encircled by the short, robust maxillae, which also form a sheath. The proboscis may be quickly extended and retracted when necessary and is used to feed on honey, sap, and other liquids.
There are more than 80,000 species of insects in the Hemiptera (real bugs) phylum. Their piercing and sucking mouthparts, which are suited for eating on liquids, set them apart from other insects. Hemiptera can range in size from 1mm to 4 inches in length and can be found in a number of settings, including wetlands and deserts. They typically live close to food sources including flowers, fruits, and sap. Hemiptera's wings frequently have membranous tips and thicker bases, giving them a two-tone look. These insects are crucial pollinators and aid in the management of pest populations.
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Related Questions
a rat that has been conditioned to fear a tone through its association with shock subsequently has connections between the amygdala and the hypothalamus severed. after the rat recovers from surgery, it is tested again. when the rat hears the tone, it will:
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When the connections between the amygdala and the hypothalamus are severed in a rat that has been conditioned to fear a tone through its association with shock, the rat's response to the tone will be altered. Without the intact connection between the amygdala and the hypothalamus, the rat may no longer exhibit the fear response that was previously associated with the tone.
The amygdala and hypothalamus are both important structures involved in the processing of fear and emotional responses in the brain. In the given scenario, the rat was initially conditioned to fear a tone through the association of the tone with a shock. This conditioning created a strong neural connection between the auditory stimuli (the tone) and the fear response.
When the connections between the amygdala and the hypothalamus are severed in the rat, it disrupts the normal flow of information between these two brain regions. The amygdala is responsible for detecting and evaluating potential threats, while the hypothalamus plays a role in coordinating the physiological responses associated with fear, such as increased heart rate, sweating, or freezing behavior.
After the rat recovers from the surgery and is tested again by hearing the tone, the absence of intact connections between the amygdala and hypothalamus may lead to a lack of fear response or a significantly reduced fear response. This is because the crucial neural pathway that allows the amygdala to signal the hypothalamus and initiate the fear response has been disrupted.
The specific behavioral response of the rat to the tone will depend on various factors, including the extent of the disconnection and the plasticity of the brain's neural circuits. In some cases, other neural pathways may compensate for the severed connection, leading to the preservation of the fear response. However, in the absence of intact amygdala-hypothalamus connections, it is likely that the rat's fear response to the tone will be diminished or absent compared to before the surgery.
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which of the cell types would secrete their product if the body was under stress, as during an intense workout? a)alpha cells b)beta cells c)pancreatic d)acinar cells
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The cell type that would secrete its product if the body was under stress, as during an intense workout, is the pancreatic cell. However, it should be noted that there are different types of pancreatic cells, such as alpha and beta cells.
Alpha cells are responsible for producing glucagon, which raises blood sugar levels, while beta cells produce insulin, which lowers blood sugar levels. During an intense workout, the body requires more energy, and therefore, the pancreas will release more glucagon and insulin to regulate blood sugar levels and ensure that the body has enough energy to perform the physical activity.
Additionally, acinar cells are responsible for producing digestive enzymes, and they are not directly involved in regulating blood sugar levels during physical activity.
So, in summary, pancreatic cells, including both alpha and beta cells, would secrete their products if the body was under stress, as during an intense workout.
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i need help with this question that is on my homework, is it ok if someone helps me please. thanks to anyone who helps! :)
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The engine
Reasoning:
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Is climate change reversible? Explain your answer.
Answers
Answer:
Yes. While we cannot stop global warming overnight, or even over the next several decades, we can slow the rate and limit the amount of global warming by reducing human emissions of heat-trapping gases and soot (“black carbon”).
If all human emissions of heat-trapping gases were to stop today, Earth’s temperature would continue to rise for a few decades as ocean currents bring excess heat stored in the deep ocean back to the surface. Once this excess heat radiated out to space, Earth’s temperature would stabilize. Experts think the additional warming from this “hidden” heat are unlikely to exceed 0.9° Fahrenheit (0.5°Celsius). With no further human influence, natural processes would begin to slowly remove the excess carbon dioxide from the atmosphere, and global temperatures would gradually begin to decline.
Explanation:
I just want to put this out there this does belong to Author: David Herring and Rebecca Lindsey but I hope their answer can help you with your question.
Answer:
Yes to some extent because if we stop the usage of co2 and other harmful substances then global warming will stop and the ozone layer will start to heal itself up. But for this we must stop polluting and ban plastic products and the usage of cfc's and DDT. We also must plant new trees everyday and stop deforestation. We can use cycles or walk to travel to places rather than using cars. Then gradually after many years the climate change will be reversed. We need to work hard. In this corona virus lockdown the nature was healing up a bit.
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Jeremy listed the steps involved in one stage of photosynthesis. Which label best classifies all three of these steps?
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Energy is used to make food.! I think it this?
each winter , ice covers a lake , during this time fish in the lake have a smaller food supply what kind of disturbance is it
Answers
Answer: A natural disruption occurs when ice blocks a lake during the winter, resulting in a decreased food source for fish.
Explanation:
Events or processes known as "natural disturbances" take place in the natural world without human interference and have a big influence on ecosystems. In this instance, the lake's capacity to support fish is constrained by the creation of ice throughout the winter. As a barrier, the ice keeps sunlight from penetrating the water and reduces photosynthesis, and this in turn has an impact on the development of algae and other main producers. As a result, the lake's food chain is thrown off, which has an effect on the number of fish and their capacity to locate enough food.
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A sequence of DNA, AAAATGCTTCTC, codes for a specific order of amino acids. Through the processes of transcription
and translation, the code in the DNA is converted to a protein. According to the model, which DNA change would have
the greatest change to the phenotype of an organism?
-)
A)
The substitution mutation has the greatest impact because it occurs in the
middle of the amino acid chain.
B)
The insertion mutation has the greatest impact because the additional
cytosine nucleotide changes the DNA's orientation
None of the DNA changes will have a change to the organism's phenotype
since the mutations still result in functional protein assembly
The deletion of a nucleotide near the beginning of the sequence has the
greatest impact because it alters all of the amino acids after the nucleotide
removal
D)
Answers
Answer:d
Explanation:
The DNA change that would have the greatest change to the phenotype of an organism is deletion of a nucleotide near the beginning of the sequence has the greatest impact because it alters all of the amino acids after the nucleotide removal. The correct option is D.
What is mutation?A variation in the customary DNA sequence at a specific gene locus. Although the term has a negative connotation, mutations (including polymorphisms) can have a negative, positive, or neutral effect on cell function. The term variant is sometimes used interchangeably with the term mutation.
A mutation is an alteration in an organism's DNA sequence. Mutations can occur as a result of errors in DNA replication during cell division, mutagen exposure, or viral infection.
Deletion results in a frameshift mutation that affects all codons following the mutation. Point mutations only affect a single point and do not affect any subsequent sequences.
Thus, the correct option is D.
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Which does not contribute to genetic variation mitosis, meiosis, crossing over, or random mating
Answers
Answer:
mitosis
Explanation:
With mitosis, the results are having a "copy" of the mother cell, while in meiosis, crossing over(only happens in meiosis) or random mating, the genetic material of the "parents" or "mother cells" is divided and it is different in each daughter cell.
ASSIGNMENT 2.1.2. Give the numbers and names of the places (regions) where Chlorophyll-containing cells occur. 2.1.3. In which of the places in question 2.1.2 does most photosynthesis occur? 2.1.4. How is the part named in question 2.1.3. structurally adapted for process of photosynthesis? 2.1.5. Give the number and name of the tissue that transports the prod of photosynthesis to the rest of the plant. E.1.6. Name the components of tissue in question 2.1.5.
Answers
2.1.2. The numbers and names of the places (regions) where Chlorophyll-containing cells occur are:
1. Epidermis2. Mesophyll3. PhloemWhat is the parts for photosynthesis?2.1.3. The mesophyll is the primary site of photosynthesis in plants. The mesophyll is a layer of cells that lies between the epidermis and the phloem. The mesophyll cells contain chlorophyll, which is the green pigment that captures sunlight and uses it to convert carbon dioxide and water into oxygen and glucose.
2.1.4. The mesophyll cells are structurally adapted for photosynthesis in several ways. First, the mesophyll cells are packed with chloroplasts, which contain chlorophyll. Second, the mesophyll cells have a large surface area, which allows them to absorb more sunlight. Third, the mesophyll cells have a thin layer of cytoplasm, which allows for the rapid diffusion of gases and nutrients.
2.1.5. Phloem
The phloem is a vascular tissue that transports food and nutrients throughout the plant. The phloem is made up of two types of cells: sieve tubes and companion cells. Sieve tubes are long, thin cells that are connected by small pores. Companion cells are smaller cells that are attached to sieve tubes. Companion cells help to provide energy and support for sieve tubes.
2.1.6. The components of the phloem tissue are:
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calculate the surface area of a sphere with a radius of 2 meters
Answers
Answer:
16\(\pi\)
Explanation:
the surface area of a sphere is 4\(\pi\)r^2
so r as 2 would mean the surface area is 16\(\pi\) or about 50.265 meters squared.
Scientists are examining the possible role of a large asteroid in the Cretaceous mass extinction event. A large asteroid strike would likely have caused rapid climate cooling and diffusion of sunlight.
Which of the following statements are the best null and alternative hypotheses when scientists look at the geologic evidence of extinction related to the asteroid strike?
A) Null: The rate of extinction would be steady over the entire length of time the climate was altered.
Alternative: The rate of extinction would be greatest immediately before the asteroid strike.
B) Null: The rate of extinction would gradually decrease over the entire length of time the climate was altered.
Alternative: The rate of extinction would be at its lowest immediately after the asteroid strike.
C) Null: The rate of extinction would be steady over the entire length of time the climate was altered.
Alternative: The rate of extinction would be greatest immediately after the asteroid strike.
D) Null: The rate of extinction would gradually decrease over the entire length of time the climate was altered.
Alternative: The rate of extinction would be at its greatest immediately after the asteroid strike.
Answers
Answer:
Option C
Explanation:
The null hypothesis is the problem statement and alternative hypothesis is counter of the null hypothesis.
Hence, the null hypothesis here is the rate of extinction was neither higher nor lower when there were sudden climatic changes (asteroid strike)
And alternate hypothesis is "the rate of extinction was either higher or lower when there were sudden climatic changes (asteroid strike)"
Hence, option C is correct
Mutations are _____ in a cell's DNA
. a. Lumps
b. Changes
c. Germs
d. Drugs
Answers
THE Answer is C = germs.
which type of inheritance involves genes found on the non-autosomal chromosomes?
Answers
Answer:
sex- linked inheritance
Hope this helps :) !!!
The type of inheritance that involves genes found on the non-autosomal chromosomes is known as sex-linked inheritance. Sex-linked inheritance is also known as sex-linked genetic disorder, sex-linked traits, or X-linked traits.The sex chromosomes determine the gender of an individual.
These are non-autosomal chromosomes. In mammals, the male has one X and one Y chromosome, while the female has two X chromosomes. Some genetic diseases and traits are linked to the X chromosome. This implies that if the genes are carried on the X chromosome, it will have a greater impact on males than females because males only have one X chromosome whereas females have two. Therefore, the condition of an X-linked trait is more prevalent in males than females due to their single X chromosome.
The example of an X-linked trait is hemophilia, a genetic condition in which blood clotting is disrupted. Hemophilia is a recessive X-linked trait, which means that only individuals with two altered genes (homozygous recessive) will exhibit hemophilia. Females are carriers of hemophilia, and they can pass the disease to their male children. However, females may also show symptoms of hemophilia in severe cases, even though this is rare. Overall, the long answer is that X-linked inheritance involves genes found on the non-autosomal chromosomes.
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What happens to water in the atmosphere after evaporation occurs?
Answers
Answer:
The cells circulate in the atmosphere, then joining together, and eventually, they clusters, (clouds) get too heavy, and rain falls.
Explanation:
What do plant cells use to get energy from the sun
Answers
Answer:
Photosynthesis
Explanation:
Plant cells obtain energy through a process called photosynthesis. This process uses solar energy to convert carbon dioxide and water into energy in the form of carbohydrates.
In an ethane (C₂H₆) molecule, each carbon atom is bonded to hydrogen atoms. (A) two (B) three (C) four (D) six
Answers
Answer:
three
Explanation:
I hope this helps you
The skeleton is made up of two parts. Which part comprises the trunk of the body?
appendicular
Axial
thoracic
pectoral
Answers
Answer: Axial
Explanation:
peculiarities of promiscuous l-threonine transaldolases for enantioselective synthesis of β-hydroxy-α-amino acids
Answers
L-threonine aldolase (LTA) and L-threonine transaldolase (L-TA) are the two major members of the threonine aldolase enzyme family. They both catalyze the formation of the β-hydroxy-α-amino acid threonine, but they differ in the precursor that they utilize. The LTA enzyme employs glycine, while the L-TA enzyme employs an aldehyde. The asymmetric synthesis of β-hydroxy-α-amino acids is often carried out using L-threonine transaldolase (L-TA), which has a number of unusual characteristics that make it well-suited for the task.
Enzyme-substrate specificity: L-TA is more promiscuous than LTA, and it can accept a wide range of aldehydes as substrates. The substrate specificity of L-TA is more relaxed than that of LTA, allowing it to accommodate a wide range of substrates with a variety of structures.
β-Hydroxy-α-amino acid enantioselectivity: L-TA catalyzes the production of β-hydroxy-α-amino acids with high enantioselectivity (>99 percent ee) in many cases. This high level of enantioselectivity is due to the fact that L-TA is a homodimer with a 2-fold axis of symmetry, and the active site is therefore symmetric. As a result, only one enantiomer of the substrate is properly oriented in the active site for catalysis to occur.
Mechanism of action: L-TA utilizes the donor aldehyde as both a substrate and a cofactor in a unique mechanism of action. The aldehyde substrate is converted to a carbinolamine intermediate by L-TA, which then undergoes β-elimination to generate a second, achiral carbinolamine intermediate.
A proton from the second carbinolamine intermediate is then transferred to the carbonyl carbon of a second aldehyde molecule, resulting in the formation of a new enantioenriched β-hydroxy-α-amino acid.
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In which sealed container would the organisms be able to continuously cycle O2 and CO2 gases? A. A terrarium with a plant and a snail B. An aquarium with fish and plastic plants C. A terrarium with tadpoles and a pool of water D. An aquarium with rocks and snails
Answers
Answer:
A terrarium with a plant and a snail
Explanation:
This is because snail uses oxygen for cellular respiration and releases carbondioxide as by product.
Where as plants uses carbondioxide exhaled for photosynthesis in the presence of light energy and chlorophyll with water to produce glucose and oxygen. Therefore cycle if oxygen and carbondioxide gases is continuous.
Can somebody help me please
Answers
Answer:
why no one
Explanation:
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look at the picture below.what does this represent
Answers
Answer:
Pro there is no picture provided : /
I need help please No plagerise please
Answers
Answer:
v
Explanation:
2. Carbohydrates, lipids and proteins.
- Carbohydrates after digestion produce: glucose
- Lipids after digestion produce: fatty acids and glycerol
- Protein after digestion produce: amino acids
3. Photosynthesis helps by converting carbon dioxide into oxygen and glucose. The glucose is used as food for the plant and oxygen is a by-product. Cellular respiration converts the oxygen and glucose into water and carbon dioxide. Carbon dioxide and water are both by-products and ATP is the energy that is produced from this process. They both work hand-in-hand to make ATP.
mention the two parasitic plant
Answers
Answer:
Parasitic plants are those which live on other plants and derive nutrition from them.
For example, Cuscuta and Mistletoe.
Explanation:
the two parasitic plant are cuscuta and mistletoe
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Explain how germinating peas use cellular respiration to obtain energy stored within their endosperm?
Answers
Answer:
Explanation:
Through aerobic respiration in the presence of oxygen they produce ATP. Explanation: Food reserves in the seeds will be hydrolyzed by the enzyme alpha amylase. ... These glucose molecules will enter into the glycolysis, TCA cycle and electron transport chain to produce ATPs.
Germinating peas use cellular respiration to obtain energy stored within their endosperm in the following way:
The endosperm is the tissue that has the function of accumulating the seminal reserves, which are the nutritional substances for the embryo, supplying all the energy necessary for it to begin its evolution.
During dormancy, the seed "waits" until conditions are correct and then germination begins.Germinating peas need to use stored energy reserves to form proteins, divide and maintain homeostasis (stable internal environment) and for this they carry out cellular respiration.The process begins by absorbing water and releasing a hormone called gibberellic acid, in turn, this substance is absorbed by the cells to form certain enzymes that will change the endosperm into sugar.Cells oxidize glucose (sugar) for energy, often this energy is used to convert ADP and phosphate into ATP, that is, the energy extracted from the sugar is stored by using it to synthesize the ATP molecule.This energy is used for germinating peas to actively divide and to maintain themselves.Therefore, we can conclude that germinating peas extract energy from endosperm into sugar through cellular respiration to create proteins, divide, stay alive and grow.
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Beginning with the flow phase arrange biochemical process in order menstrual cycle
Answers
Answer:
1. The endometrial lining breaks down and low levels of estrogen stimulate the pituitary to release FSH and LH
2. FSH and LH stimulate the follicles to develop and the oocyte to produce estrogen.
3. Rising estrogen levels suppress FSH production and development of other follicles.
4. A spike in LH causes the follicle to rupture
5. High progesterone levels maintain the endometrial lining of the uterus.
6. A breakdown of corpus luteum causes progesterone levels to drop.
Explanation:
Answer for Plato, got it right.
who invented microscope
Answers
Answer:
A Dutch father-son team named Hans and Zacharias Janssen invented the first so-called compound microscope in the late 16th century when they discovered that, if they put a lens at the top and bottom of a tube and looked through it, objects on the other end became magnified.
Explanation:
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Which statement describes one feature of chemical changes? They never change a substance’s properties. They change a substance’s identity. They can usually be reversed. They keep a substance’s arrangement of atoms the same.
Answers
They change a substance’s identity.
Answer:
They change a substance’s identity.
Explanation:
Enzo works for a pharmaceutical company experimenting with new drugs. Currently, he is searching for a new treatment to help people with
atherosclerosis. This disease makes it difficult for blood to flow smoothly through the veins and arteries. Enzo would like to find something that
could naturally thin the blood. He believes that in just the right dosage, it might be able to thin human blood enough to lower blood pressure.
Considering the symptoms that it produces in animals, which plant would Enzo be MOST interested in?
A. elderberry
B. arrow grass
C. rhubarb
D. sweet clover
Answers
The plant that the Enzo should be most interested in is the elderberry. That is option A.
Treatment of atherosclerosisAtherosclerosis is a cardiovascular disorder that occurs when there is a build up of cholesterol in the blood and plaque in the walls of the artery.
The major effect of this disorder to the arteries is the difficulty of blood flow through the arteries and veins.
Elderberry is the common name for the flowering plant called Sambucus.
Recent studies have shown, using experimental animals, that elderberry juice may reduce the level of fat in the blood and decrease cholesterol. This would help to thin human blood enough to lower blood pressure.
Therefore, the plant that the Enzo should be most interested in is the elderberry.
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Answer: its Sweet clover
Explanation: I just took the quiz and got it right
Which type of star cluster forms from tightly packed groups of older stars?
binary
eclipse
globular
open
Answers
Answer:C globular
I checked
A transactional email is Group of answer choices Usually sent regularly to the whole email list Sent to select segments of the email list during specific times of the year, like holidays Sent to an individual to update him/her about a purchase Only sent to purchasers who sign up for an email
Answers
A transactional email is a type of email that is sent to an individual to update him/her about a purchase.
It is typically only sent to purchasers who sign up for an email, and it provides information about their transaction, such as the status of their order, shipping information, and confirmation of payment. Transactional emails are essential for customer service and help to build trust with customers. Unlike promotional emails, transactional emails are not sent regularly to the whole email list. Instead, they are triggered by a specific action taken by the customer, such as making a purchase or signing up for a subscription. These emails are highly targeted and personalized, which makes them more effective in engaging customers and increasing conversions.
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