Answer:
A
Explanation:
It allows the cell to control what materials enter and leave.
Use the following terms to describe in detail how you visually perceive an object that you can see right now.
Answer: To see for example an apple first light that passes through the pupil is eventually reflected on the pupil, activating neurons in the retina. light waves that were reflected off the apple are changed into neural impulses (transduction) at the point of the retina, where neurons fire in response to light waves. Action potentials are released when neurons fire, sending an electrical charge through the neuron. Excitatory neurotransmitters are released when the action potential reaches the axon terminal, and that these neurotransmitters increase the chances that the next neuron will fire. Of course the neural message from the retina first passes through the thalamus, and then the thalamus routes the impulse elsewhere in the brain.
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Answer:
I think the black ones are stomata or guard cells and they are attached on epidermis
Stomata is used for breathing and epidermis is the skin(outer layer) of plants
Explanation:
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We live long lives compared to a lot of animals, we are at the top of the food chain, we are omnivores and have a larger variety of foods we can eat that’ll nurture our bodies
Answer:
External factors include physical and chemical signals. Growth factors are proteins that stimulate cell division. – Most mammal cells form a single layer in a culture dish and stop dividing once they touch other cells.
Explanation:
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