Explain why different types of cells are not the same.

How can natural selection affect the songs that birds sing?

What happens to pyruvate molecules formed in glycolysis in the absence of oxygen? A) they will enter the krebs cycle. B) they will undergo the process of fermentation. C) they will move directly to the electron transport chain.

Which of the following are functions of the respiratory system? a Warm air b Humidify air c Filter air d Absorb CO2 into blood

Which of the following is true of a eukaryotic cell in a multicellular organism? a. possess ribosomes b. possess a cell membrane c. possess a nucleus d. possess cytoplasm e. able to perform all life functions f. possess DNA

A newborn foal stands up to nurse from its mother. Is this an example of an innate or learned behavior? A. innate B. learned

Explain what the word in in each set have in common. Wells, Dams Aquifer, water table

Which situation allows for evolution during gene duplication? A. Existing genes are copied over generations. B. The original gene performs the same role as the mutated gene. C. The original gene NEVER duplicates. D.

Are certain types of natural resources associated with specific rock types? Explain.

What size star is the sun large medium small

Why do termites live in colonies instead of individually?