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Semester 1 Exam Study Guide Test

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Liquid water is heated until it evaporates. This is a ______________ change.

a)

chemical

b)

reactant

c)

nothing

d)

it just water.

2.

In the model above, what color are the protons?

a)

Red and pink

b)

blue and purple

c)

only red

d)

purple and pink

3.

What is the Charge of this image above?

a)

above

b)

negative

c)

positive

d)

adding sign +

4.

When a person eats an apple the ______ will release energy in the body. What goes into the blank?

a)

liver

b)

glucose

c)

energy

d)

Spongebob.

5.

What happens as the trophic level goes higher? The energy will?

a)

There is more energy

b)

The energy will do nothing

c)

The energy will get so powerful pikachu is born! Now you know how pikachu was born.

d)

There will be less energy.

6.

Which of the following is a secondary consumer?

a)
b)
c)
d)
7.

Where does the most energy in our ecosystem come from?

a)

The plants

b)

the animals

c)

the sun

d)

everything 0.0

8.

In the food web below, which organism does not supply energy to the owl?

a)
b)
c)
d)
9.

What will happen to the population of rats and hawks if the snakes were to disappear?

a)

the hawks will have nothing to eat so it would die.

b)

the hawk doesn't have anymore predators so the population will grow.

10.

Which of the following is a reactant for cellular respiration?

a)

Glucose

b)

water

c)

energy

d)

carbon dioxide

11.

Why do most food chains only have 3 or 4 links?

a)

its common sense, people.

b)

They will give off less energy when it goes down we cant have too many.

c)

they all get their energy and biomass by consuming (eating) other organisms.

d)

weird question.

12.

Which of the following is a reactant for cellular respiration?

a)

Carbon Dioxide

b)

Energy

c)

Water

d)

Glucose

13.

Through which part of a plant do the gasses enter the plant?

a)

The heart in the leaves.

b)

The stomta in the leaves

c)

The stomata in the leaves

d)

The sponge in the leave

14.

If sheep survived mainly on grass and there was a fire that eliminated their food source, what would happen to the sheep? *rock music in the background*

a)

The sheep population would DECREASE.

b)

The sheep population would INCREASE.

15.

If humans began removing one species in an ecosystem, how will that affect the other species?

a)

The species in the trophic levels below the species will DECREASE while the species in trophic levels above the species will INCREASE.

b)

The species in the trophic levels below the species will INCREASE while the species in trophic levels above the species will DECREASE.

16.

How will destroying an organism's shelter impact the carrying capacity of the ecosystem and the organism within the ecosystem?

a)

How dare you humins.

b)

The organism’s carrying capacity will DECREASE and the organism, itself, will DECREASE.

c)

The organism’s carrying capacity will INCREASE and the organism, itself, will INCREASE.

17.

How does density affect the growth of a population?

a)

The higher the density, the MORE competition for resources and the lower the density, the LESS competition for resources.

b)

The higher the density, the LESS competition for resources and the lower the density, the MORE competition for resources.

18.

If producers were to increase in an ecosystem, how will that affect the other trophic levels?

a)

Organisms in the other trophic levels will DECREASE

b)

Organisms in the other trophic levels will INCREASE

19.

What best describes the niche of this organism?

a)

Consumer

b)

predators

c)

scavenger

d)

producers

20.

Which of the following would be a limiting factor for the producers in the ecosystem pictured?

a)

sunlight

b)

soil

c)

water

d)

materials