Human Body and General Science
Mammals and Birds
Plants
Fish and Amphibians
Dinosaurs and Reptiles
100

The system that breaks food down into nutrients the body can use

What is the digestive system?

100

An animal that eats both plants and animals.

What is an omnivore?

100

Food-making process of plants.

What is photosynthesis?

100

Largest known fish

What is a whale shark?

100

Reptile group known for providing parental care for young.

What are crocodilians?
200

The idea that organisms better able to survive in their environment are more likely to live and reproduce.

What is natural selection?

200

Mammals whose young develop in a uterus before birth.

What are placental mammals?
200

Sum of all body activities and chemical processes.

What is metabolism?

200

Amphibians with long bodies and no limbs.

What are caecilians?

200

Color-containing cells that allow some reptiles to change color.

What are chromatophores?

300

A disease caused by pathogens.

What is an infectious disease?

300

Dense, twisted cords that hold the yolk in place inside an egg.

What is chalazae?

300

Early growth of a seed until the plant is ready to produce its own food.

What is germination?

300

Current-generating cells found in some fish

What are electrocytes?

300

Herbivores with long necks.

What is a sauropod?

400

Largest part of the human brain; responsible for thought.

What is the cerebrum?

400

Soft, fluffy feathers located closest to a bird’s body.

What are down feathers?

400

Movement of water from higher concentration to lower concentration through a semipermeable membrane.

What is osmosis?

400

Cartilaginous fish with slime glands that help create a slippery coating

What are hagfish?

400

Largest snake in the world.

What are anacondas?

500

Produces bile, filters some poisonous substances, and stores excess glucose.

What is the liver?

500

Birds born with down feathers and able to run shortly after birth.

What are precocial birds?

500

Process by which life continues through the generation of new organisms

What is reproduction?

500

Process in which a caecilian grows a new layer of fat-rich skin to feed its young.

What is dermatophagy?

500

Looked like giant horned lizards with bony eyelid plates and club-like tails.

What is an ankylosaur?