The guppy is a species of small freshwater fish.
Scientists observed that the average size of guppies
in a pond decreased over a few years after a guppy
predator was introduced into the pond. Which of
the following best explains the change in guppy
size?
A Speciation
B Convergent evolution
C Inbreeding
D Natural selection

What is the mrna strand that would be copied from this dna strand

{answer found. it's (3 ) }which statement describes the cell cycle? (1)the cell cycle is a process in which one cell divides into four genetically different cells. (2)the cell cycle is a process in which one cell divides into two genetically different cells. (3)the cell cycle is a process in which one cell divides into two genetically identical cells. (4)the cell cycle is a process in which one cell divides into four genetically identical cells.

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.