ECOLOGY
EVOLUTION
DNA
GENETICS
EXPERIMENTAL DESIGN
100

This level of organization includes all members of one species living in an area.

population

100

The process where organisms with beneficial traits are more likely to survive and reproduce.

natural selection

100

The sugar found in DNA.

deoxyribose

100

An organism with two identical alleles.

homozygous

100

The variable that is purposely changed.

independent variable

200

These are the nonliving parts of an ecosystem.

abiotic factors

200

Differences among individuals within a population.

variation

200

A pairs with this base.

thymine

200

An organism with two different alleles.

heterozygous

200

The variable that is measured.

dependent variable

300

A relationship where both organisms benefit.

mutualism

300

An adaptation involving body structures.

structural adaptation

300

The process of making an RNA copy of DNA.

transcription

300

A trait that is masked by another trait.

recessive

300

Which axis contains the independent variable?

x-axis

400

These limiting factors include weather, natural disasters, and drought.

density-independent factors

400

A type of selection where individuals choose mates based on traits.

sexual selection

400

The process where ribosomes build proteins.

translation

400

If T = tall and t = short, what percentage of offspring are short in Tt × Tt?

25%

400

Name one thing every graph must have.

title, labels, or scale

500

An organism introduced to a new area that causes harm to native species.

invasive species

500

Name the three conditions required for natural selection.

variation, inheritance of traits, and competition/overproduction of offspring

500

Trace the flow of genetic information.

DNA → RNA → Protein

500

When both alleles are fully expressed.

codominance

500

The final statement that explains what the data show.

conclusion