Classification
Cells and Body Systems
Genetics
Evolution
Ecology
100

The division of organisms into groups, or classes, based on specific characteristics.

What is classification?

100

The smallest functional and structural unit if living organisms.

What is a cell?

100

The genetic material of living organisms and is located in the chromosomes of each cell.

What is DNA?

100

The changing of species over time.

What is evolution?

100

The study of the interactions of living organisms with one another and with their environment.

What is ecology?

200

The last level of classification.

What is species?

200

It is found in a eukaryotic cell. a membrane-bound organelle that contains the cell's DNA and that has a role in processes such as growth, metabolism, and reproduction.

What is a nucleus?

200

A molecule that is present in all living cells and that plays a role in protein production.

What is RNA?

200

A characteristic that improves an individual's ability to survive and reproduce in a particular environment.

What is an adaptation?

200

Living factors in an environment.

What is biotic?

300

The science of describing, naming, and classifying organisms.

What is taxonomy?

300

The body system that works with the skeletal system to help you move.

What is the muscular system?

300

A cell organelle composed of RNA and protein; the site of protein synthesis.

What is a ribosome?

300

A group of organisms that are closely related and can mate to produce fertile offspring.

What is a species?

300

Nonliving part of the environment, including water, rocks, light, and temperature.

What is abiotic?

400

The aid that is used to identify organisms and that consists of the answers to a series of questions.

What is a dichotomous key?

400

The body system that pumps blood throughout your body.

What is the cardiovascular system?

400

A change in the nucleotide-base sequence of a gene or DNA molecule.

What is a mutation?

400

The trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rocks.

What is a fossil?

400

A group of organisms of the same species that live in a specific geographical area.

What is a population?

500

One animal that is in the species category.

What is a house cat?

500

The body system that breaks down the food you eat into nutrients that your body can absorb.

What is the digestive system?

500

The four types of RNA bases.

What is adenine, thymine, cytosine, and guanine?

500

A historical sequence of life indicated by fossils found in layers of the Earth's crust.

What is a fossil record?

500

All the populations of species that live in the same habitat and interact with each other.

What is a community?