Which of the following correctly describes the shape of a DNA molecule?

A. Long String
B. Single Stranded
C. Ladder
D. Double Helix


Answer: D. Double Helix

Biology & Microbiology

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Vessel elements and tracheids develop and become specialized hollow cells via the process of programmed cell death,

also called apoptosis. Indicate whether the statement is true or false.

Biology & Microbiology

The sequence of decreased death rate followed by a decrease in birthrate is called

A. environmental resistance. B. demographic transition. C. doubling time coefficient. D. replacement reproduction. E. a limiting factor.

Biology & Microbiology

________ is characterized by unusually warm ocean temperatures in the eastern Pacific.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The use of microorganisms or their products to alleviate plant disease is called biological control

Indicate whether the statement is true or false

Biology & Microbiology