The primary organs of excretion are the

A. heart and lungs.

B. lungs and kidneys.

C. kidneys and liver.

D. liver and pancreas.

What would most likely happen if a sound wave moves through a solid

What breaks carbohydrates down a. proteases b. carbohydrases c. lipase d. pepsin

How many chromosomes does a child inherit from his or her parents

What are the major processes of the respiratory system?

A biologist studying a desert ecosystem observes that the population of a lizard species increases following particularly hot, dry period that causes a snake population to decline.

What is the junction between a nerve cell and another cell called: axon, synapse, dendrite, none of the above

1. Synthesize Information How do you explain to the horse owner why this foal was born with OLWS while two previous foals were perfectly healthy? What would you tell the new parents of the baby girl about their prospects for having more children?

What organelle is the control center for the cell and holds the DNA

The primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain. Which of the following common items would best represent the primary structure of a protein? O A.

How many chromosomes do humans have? how many copies in normal cells? How many pairs? How many copies in sex cells?