The main function of the excretory system is to rid the body of:

excess food

metabolic wastes

non-digestible ingested material

all of these

Even though the tundra has extremely cold climate, it can still support life

In the united states, alcoholic beverages that are solid in stores display a government warning stating that pregnant women should not drink alcoholic bevareges. this is because

Which region of a tRNA molecule binds to amino acids? a. Anticodon loop b. Codon loop c. The 3’ end d. Variable loop

How does the author decribe the healing power of micronutrient supplements?

Bile assists in the digestion of A. proteins through chemical digestion. B. proteins through mechanical digestion. C. fats through chemical digestion. D. fats through mechanical digestion.

Which discovery is attributed to Phoebus Levene? A. extraction and observation of DNA B. identification of ribose and deoxyribose C. recognition of RNA as DNA's messenger D. construction of an accurate DNA model

A small population of chimpanzees lives in a habitat that undergoes no changes for a long period. how will genetic drift probably affect this population?

Which type of cells can differentiate into many different types of cells? select all that apply

A person has such severe epilepsy that his limbs are paralyzed, and doctors recommend a radical hemispherectomy. what results can he expect?

What does the term carrying capacity refer to?