Which of the following is the most important force in shaping evolution?

A) the fixity of species B) random events
C) biological research D) natural selection


Answer: D

Biology & Microbiology

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DNA replication is a complex process, and, as a result, the frequency of error is quite high.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The first group to exhibit an amniotic egg was

the a. Aves. b. Amphibia. c. Reptilia. d. Osteichthyes. e. Mammalia.

Biology & Microbiology

Gel electrophoresis separates the DNA fragments

according to a. their length. b. their mass. c. their speed of travel through the gel. d. the number of nucleotides in the fragment. e. all of these.

Biology & Microbiology

Invasive species outcompete native species because they lack predators and have high reproductive rates

Indicate whether the statement is true or false

Biology & Microbiology