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Ivanshal [37]
3 years ago
7

A teacher asked each student in the class to make a model demonstrating the importance of solar energy for life on Earth. Which

model should a student make?
A. A model of the electromagnetic spectrum
B. A model of a local food web
C. A model of the water cycle
D. A model of a mitochondrial matrix
Biology
1 answer:
FrozenT [24]3 years ago
8 0
A model of local food web
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Photosynthesis is a process in which plants prepare food using carbon dioxide, chlorophyll, and water in the presence of sunligh
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Answer:

During photosynthesis solar energy is transformed into chemical energy.

Explanation:

Photosynthesis is a process in which green plants prepare their own food with the help of sunlight, carbon di oxide and water. In this process, the sunlight,i.e the solar energy get trapped and converted into chemical energy. In photosynthesis, organic compounds and oxygen is being produced. Further, the organic compounds play the role of food to the green plats.  During this process, ATP is also produced.

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Which of the followingcharacteristics determines when the refractory period ends?
kondor19780726 [428]

Explanation:

<u>-how long it takes for the voltage-gatedNa+ channels to close at the end of an action potential</u>

Neurons have unique structures which aid in facilitating communication by sending and receiving electrical signals very efficient.

The refractory period describes a period between the initiation of an action potential where Na+ channels are closed, and immediately after the action potential’s peak. Action potentials would require an influx of more positively charged ions; these must be more than a specific threshold in order to have the cells send along more action potentials which helps with figuring out stimulus intensity.

Potassium ions readily diffuse out of the cell more quickly than sodium due to the presence of more channels which allow for potassium leakage. The sodium pumps in neuronal membranes bring more Na+ than K+ ions into the cell; with every three sodium ions pumped out two potassium ions are brought in- this is in order to maintain the negatively charged membranes within the cell along with the resting potential.

Learn more about the autonomic nervous system at brainly.com/question/10386413

Learn more about neurotransmitters at brainly.com/question/9424160

Learn more about homeostasis at brainly.com/question/1601808

#LearnWithBrainly

3 0
3 years ago
Earth’s landscape can change over time. What can happen to a watershed as a result?
melamori03 [73]
Through weathering and the erosion of rocks and soil, Earth’s landscape can change drastically overtime. As a result, watersheds may disappear if the land making the watershed is worn away, and the water collected is <span>able to flow back into the river, as the area is level with the rest of the land.</span>
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what are the statements?

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3. What is peptidoglycan?
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Answer:

A combination of polypeptides and modified sugars that enclose the entire eubacteria.

Explanation:

A component of bacterial cell walls called peptidoglycan (PGN) promotes innate immune responses. Peptidoglycan, a polymer made of sugars and amino acids, creates the cell wall of the majority of bacteria by producing a layer that resembles a mesh outside the plasma membrane. N-acetylglucosamine and N-acetylmuramic acid residues are alternated in the sugar component. forms a saccules in the cell wall of most bacteria that resembles a bag. It controls bacterial cell shape and is crucial for osmotic stability. A heteropolymer made up of glycan strands carrying small peptides is known as a peptidoglycan.

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