In an experiment where two groups of crickets were given different amounts of sugar in their food, which group reproduced more and why?

Group A, because they had more energy from more sugar

Group B, because they conserved energy by having less sugar

Group A, because sugar decreased their lifespan

Group B, because less sugar increased their health

Why is the ice on Earth's surface melting?

Due to increased greenhouse gases

Due to decreased solar activity

Because of increased volcanic activity

Is there a trend in increasing temperature and decreasing ice on Earth? When did this start and what is causing it?

Yes, started in the 1800s due to industrialization

Yes, started in the 2000s due to solar flares

Yes, started in the 1900s due to deforestation

What happens to the amount of energy absorbed by the Earth's surface when carbon dioxide and methane in the atmosphere increase? What happens when it decreases?

Energy absorption increases with more gases, decreases with less

Energy absorption decreases with more gases, increases with less

Energy absorption is unpredictable

Why do the temperatures on Earth increase when carbon dioxide or methane in the Earth's System increase?

A) They trap more heat in the atmosphere.

B) They decrease the ozone layer.

C) They increase the Earth's rotation speed.

D) They reflect more solar radiation.

What happens to the temperature of the Earth System if the amount of energy in the system increases?

C) The temperature remains the same.

D) The temperature fluctuates unpredictably.

What happens if the energy in the Earth System decreases?

B) The temperature remains the same.

D) The temperature fluctuates unpredictably.

What happens to the temperature on Earth if more energy enters the Earth System than leaves?

B) The temperature remains the same.

D) The temperature fluctuates unpredictably.

Can the Earth's System be stable even if there is energy entering and exiting the system?

A) Yes, if the energy balance is maintained.

B) No, it becomes unstable immediately.

C) Yes, but only without any energy exchange.

D) No, stability depends solely on external factors.

Why do populations change over time?

Due to natural selection and genetic variations

Because of migration patterns only

Because of changes in the moon's gravitational pull

Can a population be described by the traits present and by the number of individuals who have each trait?

Yes, by the traits present and the number of individuals with each trait

No, only by the number of individuals

Yes, by the geographical location only

Can the number of individuals with each trait in a population change over time?

Yes, it can change due to environmental factors

Yes, but only due to new individuals being born

No, it changes only with human intervention

What does an Adaptive Trait mean?

A trait that enhances an organism's survival and reproductive success

A trait that worsens an organism's chance of survival

A trait not influenced by environmental changes

A trait that is only found in domestic animals

What does a Non-Adaptive Trait mean?

A trait that does not influence an organism's survival or reproduction

A trait that only appears in plants

A trait developed from learning and experience

Do genes determine what traits an individual exhibits?

Partially, along with environmental factors

Do individuals with adaptive traits have more offspring? Why or why not?

Yes, because they are better suited to survive

No, adaptive traits do not affect offspring number

Yes, but only in stable environments

No, because it depends on random chance

Do individuals with non-adaptive traits live longer? Why or why not?

No, they do not necessarily live longer

Yes, in highly variable environments

No, adaptive traits are generally more beneficial

Do mutations always result in adaptive traits? Why or why not?

No, mutations can be harmful or neutral

Yes, mutations are always beneficial

Yes, because they lead to evolution

No, only in controlled environments

FINAL EXAM - STUDY GUIDE - REVIEW

Authored by Cody Napier

Science

8th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 2 pts

An ecosystem is made up of what two types of things?

Animals and plants

Living and non-living things

Water and soil

Sunlight and air

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What does it mean for a population to be stable?

The population is increasing rapidly.

The population is decreasing.

The number of individuals in the population stays roughly the same.

The population migrates to a new area.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

True or False: A system can be stable even as things are being added to and removed from it.

True

False

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What type of population is the population that gets eaten by others?

Producer population

Consumer population

Decomposer population

Predator population

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is a consumer population?

A group of organisms that produce their own food.

A group of organisms that rely on other organisms for food.

A group of organisms that break down dead materials.

A group of organisms that live in water.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What is the best definition of an organism?

Many individuals of the same species living in the same area.

All of the living and nonliving things in a particular area.

An individual plant, animal, fungus, or single-celled life form.

A creature that is large enough to see without using a microscope.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

Why do organisms need energy storage molecules?

To reproduce

To grow

To store nutrients

All of the above

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FINAL EXAM - STUDY GUIDE - REVIEW

An ecosystem is made up of what two types of things?

What does it mean for a population to be stable?

True or False: A system can be stable even as things are being added to and removed from it.

What type of population is the population that gets eaten by others?

What is a consumer population?

What is the best definition of an organism?

Why do organisms need energy storage molecules?

True or False: The less energy storage molecules available to a population, the more the organisms within the population can reproduce.

If the resource population decreases, what will likely happen to the consumer population?

If the consumer population decreases, what will likely happen to the resources population?

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