What are two definitions of evolution, and why does evolution occur?

Answer:

the gradual progression of a species

Explanation:

as a species migrates it requires new adaptions to better survive and thrive in the new environment.

What are paired chromosomes called?

Select all the true statements about density: (hint - there are 4 correct statements)

d=m/v (denisty equals mass divided by volume)

density is measured in meters

density is the ratio of an objects mass to its volume

objects that are heavy for their size are very dense

objects that are heavy for their size are not dense

density is how much matter is in a given amount of space

all dense objects will float

(there is more then 1 answer by the way)​

Cross a person who does not have freckles and is heterozygous for dimples with a person who has
freckles (but her mom does not) but no dimples.
1. What is the probability that these parents will have a child with dimples?
2. What is the probability that these parents will have a child with freckles?
3. What is the probability that these parents will have a child with dimples and freckles?

Select all that apply to the evidence of evolution:
A homologies- anatomical, molecular, and developmental
B biography
C natural selection
D fossil record

pls help!!