Question 1

-The inputs for the photosynthetic reaction are Carbon Dioxide (CO2), Water (H2O), and Sunlight energy. What are the outputs of the reaction?

Accepted Answer

C6H12O6, O2

Answer

C6H12O6, H2O

Answer

O2, CO2, H2O

Answer

CO2, C6H12O6, ENERGY

Question 2

What is one way that you think we could effectively store more carbon in biomass and keep it from entering the atmosphere?

Accepted Answer

Planting a pollinator garden

Answer

Driving cars

Answer

Burning coal

Answer

Putting food waste in landfills

Answer

Eating meat

Question 3

Is the following scenario describing a positive or negative feedback loop?
Increasing population of wolves causes a decrease in the population of prairie dogs, which in turn causes the decrease in the number of wolves until the moment that the number of prairie dogs is increasing again.

Accepted Answer

Negative Feedback Loop

Answer

Positive Feedback Loop

Answer

This is a trick question: a feedback loop is not being described here

Question 4

Is the following scenario describing a positive or negative feedback loop? 
An arroyo is a water-carved gully or normally dry creek bed. Arroyos can fill with fast-moving water very quickly during a rainstorm. After a flood, an arroyo is wider and deeper than before.

Accepted Answer

Positive Feedback Loop

Answer

This is a trick question: a feedback loop is not being described here

Answer

Negative Feedback Loop

Question 5

Does releasing excess carbon dioxide (CO2) in the atmosphere create a negative or positive feedback loop? Why?

Accepted Answer

A positive feedback loop because it is a compounding problem moving towards an extreme.

Answer

A negative feedback loop because CO2 levels have been moving towards a stabilization point over the course of the last 800 thousand years.

Answer

This is a trick question: climate has no positive or negative feedback loops. They only exist in the biosphere.

Answer

A positive feedback loop because it is a good thing for the environment.

Answer

A negative feedback loop because it is a bad thing for the environment.

Question 6

This diagram of the fast carbon cycle shows the movement of carbon between land, atmosphere, and oceans in megatons. Yellow numbers are natural fluxes, and red are human contributions in gigatons of carbon per year. White numbers indicate stored carbon. According to the diagram, which location has the greatest amount of stored carbon?

Accepted Answer

deep ocean and sediments

Answer

photosynthesis

Answer

soil and rocks

Answer

atmosphere

Question 7

Examine the graph. What is the best explanation for the recent increase in the atmospheric concentration of carbon dioxide?

Accepted Answer

combustion of fossil fuels and changes in land use

Answer

carbon storage increase through technology

Answer

atmospheric levels are actually pretty stable, it's relative

Answer

development of renewable energy sources

Question 8

What is the origin of all of the energy in the food chain?

Accepted Answer

The sun

Answer

Plants

Answer

The radioactivity from inside of the earth

Answer

The moon

Answer

The center of the universe

Question 9

On which level of the following pyramid would the primary producers be located?

Accepted Answer

A

Answer

C

Answer

D

Answer

B

Question 10

If a coyote eats 100 calories of rabbits, why don’t they transfer that 100 calories to biomass?

Accepted Answer

Most of the energy is lost to the surroundings as heat through the metabolic process

Answer

Most of the energy is transferred to the primary producers

Answer

This is a trick question. All of the kilocalories are transferred to biomass

Answer

Most of the energy is lost when the animal dies

Question 11

When would a population continue to grow exponentially?

Accepted Answer

If there is an unlimited amount of resources available.

Answer

If most individuals in the population become infected with a highly contagious but not usually fatal disease.

Answer

If a population runs out of food and water.

Answer

If a predator eats too many of its prey.

Question 12

Roadrunners are omnivores that eat just about anything they find on the ground—including rattlesnakes and venomous prey. Their primary diet includes seeds, fruits, scorpions, frogs, reptiles, small mammals, birds, and eggs, but if a pair of roadrunners wants to eat a rattlesnake, they team up and peck its head until it dies. What best describes the species of roadrunners?

Accepted Answer

Generalist species

Answer

Survival of the fittest means the roadrunners are definitely vulnerable

Answer

None of these answers apply

Answer

Specialist species

Question 13

Under which circumstances is a species most likely to go extinct?

Accepted Answer

When environmental changes occur more quickly than a species can adapt to the changes

Answer

When environmental conditions are ideal for population growth

Answer

When climate change increases available food sources for plentiful energy

Answer

When there are no limiting factors

Question 14

The honey badger loves honey. African bees dislike intruders. The honey badger evolved to develop long claws to tear into hives and thick skin that can withstand numerous stings. The African bees in turn evolved to secrete a pheromone when they are dying so other bees continue to attack. What best describes the relationship between the species of honey badger and the species of bees?

Accepted Answer

co-evolution

Answer

the bees provide a high-energy food source in the sugar of their honey

Answer

parasitism

Answer

endangered species due to low population counts

Answer

mutualism

Answer

they help each other reproduce via pollination

Question 15

What is the main cause of the acceleration in extinction of amphibian species? They require specific temperatures and available water.

Accepted Answer

human-causes such as climate change and habitat loss

Answer

predation by invasive species and disease

Answer

global temperatures remaining the same

Answer

estrogen pollution causing more of them to likely be female

Question 16

Which of the following organisms is often a pioneer species?

Accepted Answer

lichen

Answer

otters

Answer

pine trees

Question 17

What does the intermediate disturbance hypothesis state about biodiversity in ecosystems?

Accepted Answer

Ecosystems with some disturbances exhibit maximum biodiversity.

Answer

Ecosystems with few disturbances will experience a mass extinction event.

Answer

Ecosystems with no disturbances have the most biodiversity.

Answer

None of these

Question 18

Why does secondary succession occur more quickly than primary succession?

Accepted Answer

The intact soil and plant life allows producers to quickly take root in the ecosystem.

Answer

There are more lichens to turn bare rock into the first soil for that ecosystem.

Answer

The glaciers retreat more slowly in secondary succession giving new plants time to grow during the thaw.

Answer

In secondary succession people should plant trees to start the re-growing process.

Related quizzes

Related quizzes