Question 1

What causes northern snakeheads to eat other fis?

Accepted Answer

They are predators who eat other fish to survive.

Answer

They have big mouths and sharp teeth.

Answer

They are treated very badly by other kinds of fish.

Answer

They do not want to share their habitat with other animals.

Question 2

What is the best way for countries to prevent alien animal species from causing destruction?

Accepted Answer

They can check all arriving planes and ships for snakes.

Answer

They can kill off all their snake populations.

Answer

They can tell people not to eat zebra mussels.

Answer

They can warn their citizens to stay away from Guam.

Question 3

Which is an effect of invader species?

Accepted Answer

They kill native plants and animals.

Answer

They return to their native environment.

Answer

They build and strengthen food chains.

Answer

All of the above.

Question 4

What effects does kudzu have when it invades?

Accepted Answer

It buries cars and houses, and destroys native plants.

Answer

It creeps into homes and strangles people as they sleep.

Answer

It causes air pollution and hurts the economy.

Answer

It makes soil healthier and helps native plants grow.

Question 5

What can happen when an invader species interrupts a food chain?

Accepted Answer

The invader eats food sources that other species need.

Answer

The climate can change.

Answer

The invaders are killed immediately.

Answer

There's still plenty of food for every species to eat.

Question 6

Brown tree snakes have altered the environment.  Define altered and environment.

Accepted Answer

changed, habitat

Answer

left, city

Answer

infested, country

Answer

taken over, homes

Question 7

The snakehead fish invaded a pond in Maryland.  Define invaded.

Accepted Answer

moved into and harmed

Answer

cleaned

Answer

ate

Answer

moved out of before harming

Question 8

One method scientists use to kill invader species is poisoning them.  Define method.

Accepted Answer

way of doing something

Answer

drug

Answer

payment of money

Answer

trick

Question 9

To be "in hot water" means to be in trouble.  Which sentence uses this idiom correctly?

Accepted Answer

Lia was in hot water with her parents after coming home past curfew.

Answer

When Tamyra touched the boiling tea, she was in hot water.

Answer

To make broth, sprinkle this powder into hot water.

Answer

Miguel enjoyed taking a bath in hot water.

Question 10

The garden is a perfect environment for tomato plants.  Define environment.

Accepted Answer

surroundings or habitat

Answer

likely to harm

Answer

a way of doing something

Answer

to change in some way

Question 11

Pollution and wasting energy are two things that threaten our environment.  Define threaten.

Accepted Answer

likely to harm or destroy

Answer

to change for the better

Answer

fight against invader species

Answer

accuse somene

Question 12

Being a strong reader can alter your future opportunities.

Accepted Answer

change

Answer

guarantee

Answer

ruin

Answer

end

Question 13

The venom is only mildly poisonous.  Define poisonous.

Accepted Answer

capable of causing death or illness

Answer

capable of curing disease

Answer

venomous

Answer

able to heal an injury

Question 14

Red fire ants were responsible for the deaths of thousands of animals.  Define responsible.

Accepted Answer

being the cause or reason for something

Answer

killing something

Answer

being the result of something

Answer

making something extinct

Question 15

People are not capable of controlling every invader species.  Define capable.

Accepted Answer

able to do something

Answer

controlling something

Answer

killing something

Answer

identifying a new plant species

Question 16

"You'll knock their socks off" is an idiom that means you'll impress them.  Which sentence uses "You'll know their socks off" correctly?

Accepted Answer

Sally's mom said, "You'll knock their socks off," when she left for her audition.

Answer

Danny was so worried that he would knock their socks off at the skating rink.

Answer

Sadie knocked her socks off and left them on the living room floor.

Answer

The shoe salesman knocked their socks off.

Question 17

What is an argument essay?

Accepted Answer

multiple paragraphs that state a claim and provides supporting evidence

Answer

a single paragraph arguing both sides

Answer

multiple paragraphs that summarize the text

Answer

a single paragraph that cites evidence.

Question 18

We believe that they really like them.  Which pronoun is the object pronoun used as the subject in this sentence?

Accepted Answer

We

Answer

they

Answer

them

Answer

I

Question 19

They ran toward them as fast as they could.  Which pronoun is the subject pronoun in this sentence?

Accepted Answer

them

Answer

they

Answer

we

Answer

fast

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