Show:
Blood and its pathways
Patterns of Inheritance
Nervous System
Chromosomes
Ecosystems
100

These blood cells fight disease.

What are white blood cells?

100

The father of modern genetics.

Who is Gregor Mendel?

100

The central nervous system consists of these two things.

What are the brain and spinal cord?

100

Chromosomes are made of this, sections of which are known as genes.

What is DNA?

100

The parts of a habitat that are or were once alive and that interact with an organism.

What are biotic factors?

200

These bring blood back to the heart.

What are veins?

200

An organism's physical appearance or visible traits.

What is phenotype?

200
A nerve cell that carries information through the nervous system.

What is a neuron?

200

The structure of DNA resembles a twisted ladder known as this.

What is a double helix?

200

All the members of one species living in a particular area.

What is a population?

300

Veins, arteries, and capillaries are all types of these.

What are blood vessels?

300

An organism that has two different alleles for a trait, for example, Bb, is said to be this.

What is heterozygous?

300

Nerves that branch out from the central nervous make up this.

What is the peripheral nervous system?

300

The rungs of the DNA ladder are made of this. Two examples are adenine and thymine.

What are nitrogen bases?

300

This word means moving out of a population.

What is emigration?

400

Oxygen and other materials move through capillary walls through this process.

What is diffusion?

400

This two-word label is for an organism that has two of the same alleles for a trait, which are both dominant.

What is homozygous dominant?

400
The part of the nervous system that controls involuntary actions, like digestion and pupil dilation.

What is the autonomic nervous system?

400

The order of nitrogen bases along a gene forms a genetic code that specifies what type of this real-life structure, such as hair or skin, will be produced. 

What is a protein?

400

The number of individuals in an area of a specific size.

What is population density?

500

The force with which ventricles of the heart contract creates this.

What is blood pressure?
500

An organism's genetic makeup is known as this.

What is genotype?
500

The junction space between two neurons.

What is a synapse?

500

DNA stands for this.

What is deoxyribonucleic acid?

500

Environmental factors that cause a population to stop growing or to decrease size.

What are limiting factors?