Of what is this an example? A puppy's cells have two sex chromosomes that are completely the same.

A. homozygous dominant

B. homozygous recessive

C. heterozygous

D. female

it was female

What plant cell organelle uses light energy to produce sugar

What is the largest natural population of organisms that can interbreed to produce fertile offspring? A) Class B) Family C) Genus D) Species

The diagram shows the life cycle of a dragonfly. The adult stage occurs out of water, and the fertilized egg and nymph stages occur in water. Which two effects might a drought have on the life cycle of a dragonfly? A.

What surrounds the individual muscle cell?

4. Explain Are the cells that make up heart tissue prokaryotic or eukaryotic? How do you know?

What characteristics do mutations have?

Primary succession is most likely caused by what?

Strawberry plants typically reproduce by making runners, which are miniature versions of themselves, that grow off of the roots and stems of the parent. This type of vegetative reproduction is known as A) pollination. B) fragmentation.

Is one body system more important than another system?

The moon surface is covered in depressions called craters what caused most of these craters A-activities of tectonic plates B-weathering and erosion by wind and water C-the impact of debris or meteoroids D-the gradual cooling of the moon