What are the two gases that animals exchange and their surroundings

A. Oxygen and nitrogen

B. Nitrogen in helium

C. hydrogen and carbon dioxide

D. Corbin the outside and oxygen

Why would you use all the same variables in an experiment to test another variable

The amnion is an extra-embryonic membrane that surrounds the embryo and encases it in amniotic fluid. Which animal lacks an amnion? A) frog B) lizard C) pigeon

Mitosis separates chromosomes cytoplasm is divided between two daughter cells by

List and explain the 4 different types of variables and explain them.

What kind of metabolic reaction is calvin cycle? Is it anabolic or catabolic?

If there were 2000 kelp bass in 400 square meters what would be the population density? Be sure to include units of measurement along with your number!

When randomly selecting adults, let M denote the event of randomly selecting a male and let B denote the event of randomly selecting someone with blue eyes. What does Upper P (M|B) represent? Is Upper P (M|B) the same as Upper P (B|M) ?

Which land mammal are whales most closely related to

What do clastic rocks form from?

Which statement correctly describes an example of the cohesive property of water