A frequency of a= .78
b
frequency of a= .13
c
frequency of a= .7
d
frequency of a= .3

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Which of the following typically characterizes a tropical rainforests

Most of the carbon on earth is stored in the form of