What is the molecular clock?
A) The rate at which mutations accumulate in DNA within a species.
B) The rate at which new species diverge from ancestral species.
C) The rate at which structures no longer needed become small and insignificant.
D) The rate at which new discoveries are made about gene homology.
A
You might also like to view...
A terrestrial mollusc without a shell belongs to which clade?
A) chitons B) bivalves C) gastropods D) cephalopods
When the ciliary muscle contracts,
a. close objects become focused on the retina. b. a right-side-up and nonreversed pattern of light rays stimulate the retina. c. the lens flattens, and the focal point moves farther back in the eye. d. the pupil enlarges. e. all of these occur.
Microorganisms placed in high concentrations of salts and sugars undergo lysis
Indicate whether the statement is true or false
The damage caused by mismatched blood transfusions results from the activation of (antibody/complement/histamine) proteins
What will be an ideal response?