Cell Structure
Genetics
Ecology
Human Body
Scientific Method
100

This organelle is the "control center" of the cell cycle.

What is the nucleus?

100

DNA stands for this.

What is deoxyribonucleic acid?

100

Animals that eat only plants are called ___.

What are herbivores?

100

This organ pumps blood through the body.

What is the heart?

100

This is the first step in the scientific method.

What is asking a question or identifying a problem?

200

This structure controls what enters and exits the cell.

What is the cell membrane?

200

The units of heredity are called ___.

What are genes?

200

The place where an organism lives is its ___.

What is habitat?

200

These structures carry oxygenated blood away from the heart.

What are arteries?

200

A testable prediction is called a ___.

What is a hypothesis?

300

This organelle produces energy in the form of ATP.

What is the mitochondrion?

300

A dominant allele will ___ a recessive one.

What is mask or cover?

300

This describes the role or job of an organism in an ecosystem.

What is a niche?

300

The brain is part of this body system.

What is the nervous system?

300

This group in an experiment receives no treatment.

What is the control group?

400

Plant cells have this structure for support that animal cells do not.

What is the cell wall?

400

This type of chart shows possible gene combinations in offspring.

What is a Punnett square?

400

Organisms that break down dead material are called ___.

What are decomposers?

400

The small intestine is responsible for absorbing ___.

What are nutrients?

400

The variable that is changed in an experiment is the ___.

 What is the independent variable?

500

This green organelle is responsible for photosynthesis.

What is the chloroplast?

500

What is the genotype of a person with two different alleles for a trait?

What is heterozygous?

500

This type of symbiosis benefits one species and harms the other.

What is parasitism?

500

The lungs are part of this system.

What is the respiratory system?

500

Scientists use this to summarize and analyze experimental data.

What is a graph?