The need for protein is actually a need for
a. phytochemicals
b. amino acids
c. calories
d. carbohydrates

According to the cladogram, which organisms have roundworms as a common ancestor?

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.

Acid rain throughout the northeast united states has lowered the ph of many ponds and lakes. the lowered ph will eventually result in the death of many aquatic animals. compare the map of the u.s. with the ph tolerance range for the organisms listed. based on the tolerances seen here, which aquatic organisms are least likely to survive in the northeastern states?