Meiosis is significant to most living organisms because it:
A. keeps prokaryotic organisms separate from eukaryotic organisms.
O
B. allows sexual reproduction to maintain the diploid chromosome
number.
O
c. makes gametes with four times the haploid number of the
species.
D. causes the chromosome number of a species to change when it
needs to.

Often on a topographic map, every fifth contour line is darkened. what is this line called? a. key b. slope c. benchmark d. index contour

In the 1800s, one of the statements in john dalton's atomic theory was that atoms are indivisible. later experimental evidence led to the discovery of subatomic particles such as neutrons, electrons, and protons. what happened to the indivisible atom part of dalton's atomic theory, and why?

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.