A way for a new genetic characteristic to be introduced into a species is through 

A. migration.
B. mutation.
C. sexual reproduction within the species.
D. All of the choices are correct.


B. mutation.

Biology & Microbiology

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Individual water molecules are held to one another by relatively weak ________ bonds.

A. nonpolar B. hydrogen C. ionic D. covalent

Biology & Microbiology

Which connective tissue type has no blood vessels within it?

a. bone b. cartilage c. dense connective tissue d. loose connective tissue e. adipose

Biology & Microbiology

Which of the following is true of embryo cloning?

a. It occurs all the time in nature. b. It involves the genetic contribution of only one parent. c. It produces identical offspring. d. “Artificial twinning” is a laboratory application of the process. e. All of these are true.

Biology & Microbiology

Will the clone typically be sterile or fertile?

A) Sterile B) Fertile C) It depends on whether it is male or female.

Biology & Microbiology