Human hormones testosterone and estrogen are considered lipids. What could be the reason for this?

They are phospholipids.

They are fatty acids.

They are steroids.

cells are the message carriers for the animal.

We produce many more synapses than we need, and then retain only those that are used in a "use it or lose it" fashion. what does this demonstrate?

How many chromosomes are there in each cell after a. mitosis, b. meiosis i, and c. meiosis ii?

As energy is transferred from one organism to the next what happens to the available energy

Similarities and differences between nitrogen cycle and carbon cycle

Which type of cell goes through the determination process?

What organic molecule is the basis of enzymes.?

Which transport mechanisms require the formation of a vesicles to transport material into or out of the cell? A: diffusion and osmosis B: exocytosis and calcium pumps C: exocytosis and endocytosis D: diffusion and facilitated diffusion

Why does my female cat roll around after mating?

Which feature is not the result of a glacier carving out rock as it moves? A. Cirque B. Terminal moraine C. Fjord D. Horn peak