Which of the following happens at the conclusion of meiosis i?
a) homologous chromosomes are separated.
b) the chromosome number per cell is conserved.
c) sister chromatids are separated.
d) four daughter cells are formed.
e) the sperm cells elongate to form a head and a tail end.

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean