Contraction of the right ventricle forces blood initially into the

What will be an ideal response?


pulmonary artery

Biology & Microbiology

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The addition of methyl groups to DNA by chemicals in tobacco can cause DNA to _____

a. replicate b. polymerize c. hybridize d. mutate e. fragment

Biology & Microbiology

Globally, cigarette smoking kills four million people

annually. That number is expected to increase to _____ million by 2030. a. 10 b. 50 c. 100 d. 150 e. 250

Biology & Microbiology

In cases of __________ growth, a population’s

growth is proportional to its size. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

How does ocean fishing affect marine ecosystems today?

A. Because the oceans are so large, they are the one remaining natural ecosystem that is not susceptible to extinction. B. Ocean fishing has resulted in overexploitation in 11 of the 15 major oceanic fishing areas. C. Only 2 of the 15 major oceanic fishing areas are considered overexploited. D. There has been an increase of bottom-dwelling ocean fish, but schools of swimming fish have declined. E. Bottom-dwelling fish are frequently overfished by trawling, but schools of swimming fish that can easily get away are increasing.

Biology & Microbiology