Answer:
Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.
Bonus: we eat plants
Hope this helps!
The answer choice above which best describes how the cell cycle relates to neurons is:
Neurons do not go through M phase.
Option a is the correct answer
<h3>What is a neuron?</h3>
A neuron is defined as structural and functional unit of the nervous system
Complete question:
In humans, adult brain cells called neurons are terminally differentiated. This means that they are completely mature and no longer undergo the cell cycle.
Which of the following statements best describes how the cell cycle relates to neurons?
a. Neurons do not go through M phase.
b. Neurons passes through the M phase
c. None of the above
So therefore, the answer choice above which best describes how the cell cycle relates to neurons is:
Neurons do not go through M phase.
Learn more about neurons:
brainly.com/question/11538106
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Answer: Option b) Community
Explanation:
A community refers to the entire group of living organisms in an specific area, living together and relying on one another for nutrients, shelter, protection etc.
Thus, a community usually cover more than one kind of organism. An example of community is the organisms in a swamp, which include plants, animal and microorganisms.
Answer:
The correct answers are option 2, 4 and 6
Explanation:
2-The T tubules are the extensions of the cell membrane that goes deep into the center of the middle of the skeletal and cardiac muscles and are in close contact with the sarcoplasmic reticulum.
These tubes plays 2 vital functions in connecting an action potential to muscle contraction. T tubules causes the action potential from the plasma membrane into the interior of the muscle cell through voltage-gated Na+ and K+ channels.
An action potential causes the opening and closing of Calcium channels in the sarcoplasmic reticulum. The resulting change in cytosolic Ca2+ concentration triggers contraction of the myofibrils.
The T tubules play two important roles in linking an action potential to muscle contraction.
