7.10A
7.10B
7.5A
7.5B
7.7A
7.7B

100

Why are seals able to live off the coast of Antarctica while frogs, snakes, and panthers are not?

A. Seals can swim.

B. Seals are predators.

C. Seals are warm-blooded animals.

D. Seals have fur and blubber.

What is D. Seals have fur and blubber?

100

In which way are rainforests and coral reefs different from ecosystems with few species?

A. Organisms often must compete for food.

B. The food web is more stable and lasting.

C. Plant are the primary producers.

D. There are more prey than predators.

What is B. The food web is more stable and lasting?

100

Photosynthetic plants transform radiant energy       

     into...

A. Electricity

B. heat energy

C. chemical energy

D. solar energy

What is C. Chemical energy?

100

In the water cycle, surface water is cycled to large bodies of water by…

A. the running off of water.

B. the freezing of water in glaciers.

C. oil drilling and human consumption.

D. evaporation of water into clouds.

What is A. the running off of water?

100

In which biological event is chemical energy transformed into mechanical energy?

A. Photosynthesis

B. Muscular movement

C. Bioluminescence

D. Nerve impulse transfer

What is B. Muscular movement?

100

When a plant has low turgor pressure, it will..

A. Be rigid

B. Undergo photosynthesis

C. Freeze

D. Wilt 

What is D. Wilt?

200

Which of the following is likely to have the most biodiversity ?

A. A tropical rainforest

B. An arctic tundra

C. Blackland Prairies 

D. A residential backyard

What is A. A tropical rainforest?

200

Which of these is a threat to the survival of 

     an ecosystem?

A. predator-prey population cycles

B. less life at higher levels of the food web

C. a shrinking variety of animals & plants

D. competition among consumer populations

What is C. a shrinking variety of animals & plants?

200

The chemical reaction responsible for all life in some way, on Earth is…

A. the hydrologic cycle

B. the carbon cycle

C. digestion

D. photosynthesis

What is D. photosynthesis?

200

How is most of Earth's carbon made available? 

A. By carbon being recycled through the decomposition of dead organisms

B. By carbon being brought to the surface through weathering

C. By carbon atoms being transferred from the Sun to Earth through light

D. By carbon atoms being created through photosynthesis

What is A. By carbon being recycled through the decomposition of dead organisms?

200

Which type of energy do muscle cells use to produce mechanical energy in the movement of an arm?

A. Chemical

B. Nuclear

C. Radiant

D. Thermal 

What is A. Chemical?

200

Plant roots growing down and stems growing up in a response to the external stimulus of the force of gravity is called--

A. Geotropism

B. Photosynthesis

C. Thigmotropism

D. Phototropism 

What is A. Geotropism?

300

Which characteristic below describes a jaguar’s niche?

A. has a coat with dark spots

B. hunts during the night

C. gives birth to up to four cubs

D. has a life-span of 12 to 15 years

What is B. hunts during the night?

300

The loss of plants near a stream resulted in 

    soil being washed downstream. In this case,  

    the loss of biodiversity resulted in…

A. A cleaner environment

B. The expansion of the ecosystem

C. Increase of new plant species

D. loss of abiotic factors in the ecosystem

What is D. loss of abiotic factors in the ecosystem?

300

Within the process of photosynthesis, what forms of energy are entering and exiting?

A. photosynthesis,  the use of light energy to make energy rich molecules.

B. Thermal energy in light are entering, electrical energy is exiting.

C. Light energy is entering, chemical energy in glucose is exiting.

D. Chemical energy in nutrients are entering, light energy is exiting.

What is C. Light energy is entering, chemical energy in glucose is exiting.

300

Organisms that remove carbon dioxide from the atmosphere to recycle it in the carbon cycle are...

A. producers that carry out photosynthesis to make carbon-rich sugars.

B. fungi that break down carbon dioxide and release oxygen in exchange.

C. consumers that take in carbon dioxide when they inhale to make energy.

D. bacteria that chemically combine the carbon with nitrogen to make nutrients.

What is A. producers that carry out photosynthesis to make carbon-rich sugars?

300

The sound made by crickets occurs when the male crickets rubs its two hind legs together. Which type of energy transformation results in the sound made by crickets?

A. Sound energy to thermal energy

B. Thermal energy to chemical energy

C. Mechanical energy to sound energy

D. Mechanical energy to chemical energy

What is C. Mechanical energy to sound energy?

300

Plants growing toward and responding to the external stimulus of light is called--

A. Geotropism

B. Photosynthesis

C. Thigmotropism

D. Phototropism

What is D. Phototropism?