Plant Life
Weird Creatures
Ecosystem Changes
Bird & Flight
Classification
100

The main tissue of a tree trunk is the ________.

wood

100

If you look closely at a shark’s skin, you would see tooth-like scales called ________.

denticles

100

A region of water too salty to be freshwater and not salty enough to be saltwater is the ________.

brackish biome

100

What is the faster-flying bird?

peregrine falcon

100

The idea that the universe and life are the result of chance and natural processes is known as ________.

evolution

200

Plants that live many growing seasons are called ________.

perennials

200

The hard, movable plates covering the gills of a bony fish are ________.

opercula

200

What is any object that releases carbon dioxide into the environment?

carbon source

200

Carnivorous hunting birds are classified in the group of ________.

birds of prey

200

What is the changing of an immature hatchling into an adult?

metamorphosis

300

What is the group of algae that includes volvox?

green

300

Protozoa that move using long, whip-like structures are ________.

flagellates

300

Several years after ecosystem damage, a new ecosystem develops. What process occurred?

ecological succession

300

Gliding within an updraft to gain altitude is ________.

soaring

300

Together, all the living things in an ecosystem are the ________.

community

400

What is the early growth of a seed called?

germination

400

Which crustacean group has one simple eye on top of its head?

copepods

400

What happens to a desert at carrying capacity that continues to receive rattlesnakes?

overpopulation

400

What organ allows a bird to produce sound?

syrinx

400

What is an organism’s occupation within its environment called?

niche

500

What is the dominant plant species in a biome called?

climax vegetation

500

What animal group is characterized by having tube feet?

echinoderms

500

What type of biogeochemical cycles recycle nutrients found in soil and rocks?

sedimentary

500

What term refers to a chick born featherless and helpless?

altricial

500

What invertebrate group is characterized by the head, foot, and mantle?

mollusks