HW 21 - Effingham County Schools

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Homework #21 Name ______________

1.

The animal kingdom is divided into 2 groups, one has backbones:

(vertebrate/invertebrate), and one does not have backbones:

(vertebrate/invertebrate).

2.

This invertebrate group has simple digestive systems and an example would be a jellyfish: (echinoderms/cnidarians).

3.

This invertebrate group has spiny skin and suckers to catch prey. An example is a starfish: (echinoderms/cnidarians).

4.

This invertebrate group lack tissues, organs, and body symmetry; they mostly absorb food: (sponges/mollusks).

5.

This invertebrate group has exoskeletons, like a spider:

(mollusks/arthropods).

6.

This invertebrate group has soft bodies and shells, like an oyster:

(mollusks/sponges).

7.

This invertebrate group has simple organs and heads (mollusks/worms).

8.

This vertebrate group is cold-blooded and has gills (amphibians/fish).

9.

This vertebrate group is cold-blooded and can live in or out of water

(amphibians/fish).

10.

This vertebrate group is cold-blooded, has dry skin, and mostly lay eggs

(chicken/reptiles).

11.

This vertebrate group is warm-blooded and has hollow bones:

(birds/mammals).

12.

This vertebrate group is the most complex: (birds/mammals).

13.

After WWII, there was an invisible line across Europe that separated communist from noncommunist (Iron Curtain/Berlin Wall).

14.

This city in Germany was literally divided communist from noncommunist

(Iron Curtain/Berlin Wall).

15.

The U.S. helped out the people in the city of Berlin by sending in food and supplies by air in the (Berlin Airlift/Berlin Air Support).

16.

A that was fought to help spread communism in Korea (Korean

War/Vietnam War).

17.

A group of allies that agreed to defend each other if they should be attacked (United Nations/North Atlantic Treaty Organization).

18.

Leader of the Soviet Union during the Cuban Missile Crisis (Joseph

McCarthy/Nikita Khrushchev)

19.

Accused people of being secret communist in the U.S. (Joseph

McCarthy/Nikita Khrushchev)

20.

What caused the Great Depression? (The Dust Bowl/Stock market crash)

21.

Who was the president at the beginning of the depression? (Hoover/FDR)

22.

FDR created the (New Job Plan/New Deal) to help end the depression.

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