Scientists discovered that small-footed and large-footed lizards shared a common ancestor. today they are no longer able to interbreed together.

what is this an example of?

a.
speciation

b.
succession

c.
spontaneous generation

d.
natural selection

What kind of bond is created by the attraction between atomic particles of opposite charge? ionic bond hydrogen bond covalent bond nuclear bond

What is the correct name for the animal pictured on the right? puma cougar panther mountain lion catamount

Why does sexual reproduction increase the genetic variation in a species? a. sexual reproduction doubles the chromosome number. b. sexual reproduction produces organisms with no dna. c. the gametes in sexual reproduction are exact clones of the parents. d. a fertilized egg has a mixture of alleles from the two parents.