Where does almost all the energy that drives life on the earth originate

Why it is necessary to critique a scientific argument before it is accepted.

make a claim about how related tuna, turtles, and chimpanzees are to humans. use evidence to support the claim and explain your reasoning

The structure (s) that may carry either urine or sperm in the male pig is (are): a. ureter b. bladder c. urethra d. penis e. a and b f. c and f g. b, c and d h. all of the above

How does a scientist come up with a theory?

How do both photosynthesis and cellular respiration allow your cells to get the energy they need to live?

Elements are composed of atoms of at least two different types. a. True b. False

The flat area surrounding the mouth of the Mississippi River is covered with rich sediments important to farming in this area. These sediments are deposited at a rate of 80,000 tons per year.

What place are sloths found?

In a solution of salt and water, which component is the solute? a. salt b. water c. beaker d. oxygen c

What are the two types of warm air masses that influence the weather in north america name and explain how they typically affect the weather