Guard cells regulate the stomata opening for gas exchange essential for photosynthesis, and mesophyll cells contain chlorophyll for capturing sunlight to synthesize sugars. These examples show the specialized roles cells have in leaves to optimize photosynthesis.
Explanation:Specialized cells within a leaf facilitate the process of photosynthesis effectively. One example is the guard cells that flank each stoma. These cells swell or shrink in response to osmotic changes, thus regulating the opening and closing of stomata. This action allows the intake of carbon dioxide necessary for photosynthesis, while also controlling water loss through transpiration.
Another crucial type of specialized cell is found in the mesophyll layer. Mesophyll cells are packed with chloroplasts, which contain the pigment chlorophyll that captures sunlight for photosynthesis. These cells are the main site where the synthesis of sugars from carbon dioxide and water occurs, using the energy harnessed from sunlight.
Both guard cells and mesophyll cells show how leaf structures are adapted to optimize photosynthesis while balancing other vital functions such as gas exchange and water conservation.
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Why doesn’t each child look exactly alike?
What is the original source of variation that natural selection can act upon?
The original source of variation that natural selection can act upon is genetic diversity in a population, which comes from mutation and sexual reproduction.
Explanation:The original source of variation that natural selection can act upon is primarily genetic diversity in a population, which comes from two main sources: mutation and sexual reproduction.
Mutation, a change in DNA, is the ultimate source of new alleles or new genetic variation in any population. It can result in an individual having a trait different from other individuals. The changes caused by mutation can provide beneficial, harmful or neutral effects on an organism's phenotype which is a critical aspect for natural selection.
Sexually reproducing species also contribute to genetic diversity through unique combinations of alleles assembling to produce unique genotypes in offspring. Natural selection can only act if there is variation among individuals in a population, and this variation must be genetically based.
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List the levels of organization from smallest to largest and give an example for each. cell….
When caring for a client who is on intravenous therapy, the nurse observes that the client has developed redness, warmth, and discomfort along the vein. which intervention should the nurse perform for this complication?
11) Any abiotic or biotic factor in an ecosystem that causes a population’s size to slow or decrease is a ____________ factor. A) growth B) limiting C) carrying D) density dependent
The male reproductive gland which produces a fructose-rich solution which nourishes sperm and constitutes about 60% of the volume of semen is:
The division of the autonomic nervous system that is often referred to as the rest and digest system is the sympathetic nervous system.
a. True
b. False
when earth cools most energy transferred from earths surface to space is transferred by the process of
When Earth cools most energy transferred from earths surface to space is transferred by the process of radiation. The correct option is 4.
What is radiation?Radiation is energy that travels through space at the speed of light from a source. This energy is associated with an electric and magnetic field, and it has wave-like properties. Radiation is also known as "electromagnetic waves."
The flow of electromagnetic energy between the sun and the Earth's surface as influenced by clouds, aerosols, and gases in the Earth's atmosphere is known as atmospheric radiation.
Radiation from the warmed upper atmosphere, as well as some from the Earth's surface, is emitted into space.
The majority of the longwave radiation emitted warms the lower atmosphere, which in turn warms our planet's surface.
Thus, the correct option is 4.
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Your question seems incomplete, the missing options are:
(1) conduction
(2) reflection
(3) refraction
(4) radiation
The "Father of Modern Taxonomy" is _____.
The vast majority of all species who have ever lived on earth no longer exist. Far more organisms have become extinct than are currently alive. Why? A. Species are continually being replaced or changed into other species by evolution. This process is currently very rapid compared to how long life has existed on earth. B. Over the past two million years, human interference has continually and significantly decreased animal and plant biodiversity. C. Mass extinction events like meteor impacts and climate changes have destroyed most life on earth. D. The biodiversity of life on earth continually decreases as natural selection eliminates species that are less fit for survival.
Far more organisms are currently organisms Species are continually being replaced or changed into other species by evolution.
What is Evolution?More than 99 percent of all organisms that have ever lived on Earth are extinct. As new species evolve to fit ever changing ecological niches, older species fade away.
But the rate of extinction is far from constant. At least a handful of times in the last 500 million years, 75 to more than 90 percent of all species on Earth have disappeared in a geological blink of an eye in catastrophes we call mass extinctions.
Though mass extinctions are deadly events, they open up the planet for new forms of life to emerge. The most studied mass extinction, which marked the boundary between the Cretaceous and Paleogene periods about 66 million years ago, killed off the nonavian dinosaurs and made room for mammals and birds to rapidly diversify and evolve.
Therefore, Far more organisms are currently organisms Species are continually being replaced or changed into other species by evolution.
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_____ bonds form and hold the DNA together.
A. hydrogen
B. peptide
C. polar
Select the part of the ATP molecule that stores and releases energy.
A
B
C
D
Answer:
The correct answer is B.
Explanation:
ATP stands for adenosine triphosphate. ATP is considered as the energy currency of the cell because it provides lots of energy during metabolic processes. The energy in ATP is stored as a high energy terminal phosphate bond which means the energy will release when the terminal phosphate bond will break.
As the terminal phosphate bond breaks the energy is released which is used by the cell to perform some metabolic activity. After this reaction, the ATP converts into ADP. So the correct answer is B.
Mycorrhizae are associations formed by fungi that grow on the roots of trees. These fungi penetrate into the roots of the trees. The trees produce energy through photosynthesis and share it with the fungi. The fungi act as decomposers, breaking down dead organic matter to provide nutrients for the trees to grow. What kind of a relationship is exhibited in this example? The fungi share a mutualistic association with the trees. The fungi are a parasite for trees. The fungi share a commensal association with the trees. The fungi are predators for the trees.
Answer: The fungi share a mutualistic association with the trees.
Mutualism is a relationship among two species, in which two species lives in close association with each other. In this relationship both the species are benefited.
The given situation, is an example of mutualistic association of the fungal species with the tree. This is because of the fact that the fungal species provides trees with nutrients after the process of decomposition, that are necessary for the growth of the trees. In return the fungal species obtains carbohydrates produced by photosynthesis from the roots of the trees. Therefore, both the species are benefited hence, it is a mutualistic association.
Answer: A.
The fungi share a mutualistic association with the trees.
Explanation:
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Tools and instruments used to puncture or invade the skin must be sterilized or designed to be
The tools and instruments used to puncture or invade the skin must be sterilized or designed to be disposable. aThis makes it capable of being thrown away after being used. It is considered to be a single-used material that is used by the medical practitioners in order to prevent sepsis.
Which term describes body structures in different organisms that have different outward appearances but develop from the same embryonic tissues?
Answer:
homologous
Explanation:
An eating disorder characterized by episodes of excessive eating followed by forced vomiting or the use of laxatives is called:
A unique blue is a blue that has no _______ or green tint.
4. The science team uses the information to suggest the main outcome of the hypothesis.
a. Make a prediction
b. Test the hypothesis
c. observe the problem
d. Define a problem
5. This step includes recording data, taking photos, and coordinating information.
a. Make a prediction
b. Test the hypothesis
c. observe the problem
d. Define a problem
6. This a critical part of the process that verifies that the predicted outcome is valid.
a. Test the hypothesis
b. Make a prediction
c. Hypothesis becomes a theory
d. Observe the problem
7. The scientists analyze the data gathered from the experiment and summarize what they have learned from the experiment.
a. Define a problem
b. make a hypothesis
c. Make a conclusion
d. Test the hypothesis
Answer:
Q 4. The correct answer. Make a prediction
Before starting any research scientists make some predictions about the main outcome of the hypothesis by using the information from old literature and research work.
Q 5. The correct answer is b. Test the hypothesis
Hypothesis is just a prediction so to validate a hypothesis prove should be given which can be in the form of experimental data, photos, and research work.
Q 6. The correct answer is c. Hypothesis becomes a theory
A critical part of the process that verifies that the predicted outcome is valid is when a hypothesis becomes a theory with appropriate proof that support hypothesis.
Q 7. The correct answer is c. Make a conclusion
The last work of a research is to make a conclusion by analyzing the data gathered from the experiment.
Which microscope would be most useful for quickly estimating the number of red blood cells in a patients blood sample
Im pretty sure it is electron
Alex's family raises fruit and vegetables for income. they live in an area that receives less than .2 inches of rain per month. therefore they need to use an irrigation system to water their crops. where does alex live?hint: use the map below to help you answer this item.climate mapegyptperuaustraliarussia
The answer is Egypt.
It cannot be Russia or Peru because they receive more than .2 inches of rainfall. If Alex lived in Australia, there is a possibility that he could live in the part of Australia that has rain.
Cells are the basic
a0
a1 of our bodies.
Answer:
A1 Biological A2 Unit
Explanation:
Cells are the basic Biological Unit of our bodies. Cells are the building blocks of all living organisms, that means us too!! A combination of cells makes tissues and those make up other things like organs and so on. This is why Cells are the basic Biological Unit of our bodies
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The nurse has been assigned to a post-abdominal surgery client who has also been diagnosed with dementia. the family is concerned about pain control for the client because the client is confused. what should the nurse include in their teaching to the family about the pain control plan for this client?
Answer:
In the given case, the nurse should include in his or her teaching regarding the vital signs of the patient, which are indicative of his pain and there is a need to assess it frequently. The nurse should also illustrate the trend regarding the changes in the behavior of the patient suffering from dementia mainly when they are in pain.
The nurse should also include teachings regarding pre-medicating the patient prior to the activities and prior to anticipating pain.
How can you tell if a biological molecule is a carbohydrate?
A 21-year-old patient has a head injury resulting from trauma and is unconscious. there are no other injuries. during the assessment what would the nurse expect to find when testing the patient's deep tendon reflexes?
In what life process does hydrolysis occur
Imagine there are two different cells, cell A and cell B. Explain why lactic acid, carbon dioxide and only 2 ATP are produced in cell A and carbon dioxide, water and up to 32 ATP are produced in cell B.
Which organelle appears as a stack of membranes?
A. mitochondrion
B. vesicle
C. cell membrane
D. Golgi apparatus
What are brown bears doing as a result of panting
Answer:
Maintaining body temperature by cooling down
Explanation:
Brown bears have adaptive strategies to lower down the body temperature during hot months. Under hot sunny day, their breath rate is increased with shallow breaths. This is called as panting. The shallow breaths allow the cooler air to circulate over the moist mouth surfaces and leads to lower down the body temperature.
How do floating discs correspond to the rate of photosynthesis?
A molecular clock assumes that the genes used are evolving rapidly. do not alter their rates in different lineages. are evolving slowly. are all evolving at the same rate. alter their rates in different lineages.