PLEASE HELP Which of the following is an example of an organism's response to an internal stimulus in order to maintain homeostasis?

A. A predator scares a rabbit and he runs for safety.

B. The temperature drops in Canada so the birds migrate south.

C. A bird is hungry so he searches for food.

D. The Sun causes a plant to increase its temperature.

E. A student feels the outside cold temperatures and puts on a hoodle.

With the description of the different cell walls, membranes, and associated proteins set in the students' minds, you now need to introduce them to the idea that the cell wall can also act as a foundation to build things upon. bacterial appendages require a strong foundation that will offer the support needed to move and function in a dynamic world. for example, flagella are long, whiplike protein structures that are used by many gram-positive and gram-negative bacteria for locomotion. in order to function effectively, a flagellum must be firmly anchored to the cell wall. how will you be able to get across the idea that the peptidoglycan cell wall is strong enough to support such a mechanism? with a protein rod that passes through the cell wall and protein rings used to anchor it in the membranes, these basal bodies are the rudimentary biological motors that use atp power to spin the hook and the flagella attached to it. bacterial flagella have a biological motor that spins within the cell wall and is powered by atp. this allows the flagella to spin in a whiplike motion to propel the bacterium.

Construct an explanation about the function of mitosis for multicellular organisms

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?