How have cactuses adapted to the fact that it almost never rains in the desert?

A

They're covered in spikes.

B

They have thick, pleated stems.

C

They have big, waxy leaves.

D

They're camouflaged.

I wonder if fish and marine mammals drink salty water

What organic molecule has up to 4 levels of structure

What is the role of water in the light reactions of photosynthesis?

In an experiment six people at different places around the earth drop an apple at the same time witch apple will fall to the earth

Primase is an enzyme that synthesizes RNA polymers to provide a 3'OH end for DNA polymerase to use. Which of the following is Primase going to need? a. a DNA template and deoxyribonucleoside triphosphates (dNTPs) b.

Explain why of how living things transform matter

Capillaries function in gas exchange. Describe at least two ways capillary structure is related to this function.

Develop an argument that analyzes the role of the cell membrane in the excretion of materials.

Why might a scientist studying evolution be interesting in howthe environment has changed over time

Idenity the process that occurs within the sun that converts mass into large amount of Energy