1.
The basic unit of life that makes up all living things.
2.
The control center of a cell that contains DNA.
3.
The molecule that carries genetic information.
4.
A section of DNA that controls a trait.
6.
A group of similar cells working together.
7.
A body part made of tissues that does a specific job.
8.
A group of organs working together in the body.
9.
The process plants use to make food from sunlight.
10.
The green pigment in plants that absorbs sunlight.
11.
Parts of cells that release energy from food.
12.
The jelly-like material inside a cell.
13.
The layer that controls what enters and leaves a cell.
14.
The movement of water through a membrane.
15.
The movement of particles from crowded areas to less crowded areas.
16.
Keeping stable conditions inside the body.
17.
The gradual change of species over time.
18.
A trait that helps an organism survive.
19.
The natural place where an organism lives.
20.
Living and nonliving things interacting in an area.
21.
An organism, like a plant, that makes its own food.
22.
An organism that gets energy by eating others.
23.
An organism that breaks down dead material.
24.
A series showing how energy moves between organisms.
25.
An animal that hunts other animals.
26.
An animal hunted by another animal.
27.
A group of organisms that can reproduce together.
28.
All members of one species in an area.
29.
Different populations living together.
30.
The variety of living things in an area.
31.
A different form of a gene.
32.
A protein that speeds up chemical reactions.
33.
A nutrient used for growth and repair.
35.
A structure that carries genetic information.
36.
A substance that helps protect against disease.
37.
Tiny single-celled organisms.
38.
A tiny particle that can cause disease.
39.
The physical traits or characteristics of an organism.
40.
A type of fat used for energy storage and cell structure.
