Which of the following describes a medical drug?

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A. A bacterium that causes a human disease

B. A chemical substance used to treat disease

O

C. A virus that is passed from person to person

O

D. A physiological symptom related to a sickness

True or false? The more similar two organisms are, the more distant their common ancestor is.

Which traits are controlled by multiple genes? Check all that apply. red hair hazel eyes blood type length of corn ears birth weight fur color of palomino horses

Which of the following investigations is an example of the study of an abiotic factor? See Concept 52.1 (Page 1167) Which of the following investigations is an example of the study of an abiotic factor? See Concept 52.

Whyshould humans save endangered animals from extinction?

Giraffe necks have changed from short to long over many generations so they can eat leaves in taller trees. This is an example of ... a. Migration. b. Evolution. c. Cloning. d. Variation.

Which organism actively hunts other

Where does chemical digestion of food take place?

What organelle stores information and is considered the control center of the cell?

Can farming and conservation go hand in hand? how?

What are the three main components of biodiversity? a. Species diversity, species productivity, and species stability b. Genetic diversity, species abundance, and species evenness c. Species richness, species abundance, and species evenness d.