What does a food web represent?

All connections of energy flow throughout all organisms in a habitat.

The specific ways that mutualism is carried out.

A single pathway or energy flow between organisms.

In an ecosystem, each trophic level receives energy from the level below it. What is the source of energy for the first trophic level?

The first trophic level receives a continuous supply of radiant energy from the sun

Energy is recycled to the first trophic level from all the higher levels

The first trophic level produces energy without any input from the environment.

the first trophic level converts nutrients in soil into energy.

A population of elephants in a savannah ecosystem has reached its carrying capacity. Which statement best describes the population of elephants?

the population has grown to the largest size the ecosystem can support

the population has become too dense for the ecosystem to support

the population will remain stable even if the ecosystem undergoes severe changes

the population has decreased so much that it is in danger of not surviving.

If worldwide deforestation is not regulated, what could most likely result?

CO2 levels in the atmosphere could increase and contribute to global warming problems

Acid rain could lower the pH of rivers and lakes to dangerous levels for aquatic life

Plants and animals could become better adapted to living in desert conditions.

Future generations of humans could have an excess of wood and paper products.

Which of the following are likely to affect population growth?

Number of Individuals in a Population

Which process of the carbon cycle removes carbon dioxide from the atmosphere?

death and decomposing organisms

What are the products of photosynthesis?

water, carbon dioxide, and energy

A team of ecologists observed feeding patterns of several populations in the desert. The energy pyramid shown below depicts the feeding patterns the ecologists observed. Which of the following best explains the difference in the amount of available energy in the trophic levels of the desert ecosystem?

There is less available energy in the fourth trophic level because of the loss of energy through metabolism in each of the lower trophic levels.

There is less energy available in the producers because their tissues are less dense than those at higher trophic levels.

There is more energy available in the second trophic level because less energy is needed for hunting compared to the higher trophic levels.

There is more available energy in the birds of prey because they have greater muscle mass for storing energy than organisms in lower trophic levels have.

Which is an example of an invasive species?

the kudzu vine introduced to help prevent soil erosion

rattlesnakes in the desert searching for prey

bacteria decomposing dead organic matter in the soil

algae that produces oxygen in fresh water

A population of foxes in a forest ecosystem has become stable, neither growing or becoming smaller. Which statement would best describe the population of foxes?

the fox population has reached its carrying capacity

the foxes are not dying or reproducing

the foxes are moving into and out of the forest ecosystem

the fox population has failed to change due to lack of food

Graph of predator-prey relationship

Graph of relationship between CO 2 and temperature

Graph of mutualistic relationship between two species

Graph of natural selection over time

show a decline after an increase

display populations that have reached carrying capacity

does not depend on the numbe rof resources

Biology EOC Review Ecology

Quiz

•

Biology

•

9th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS2-3, MS-LS2-4, MS-LS2-2

+12

Standards-aligned

Jenny Gutshall

Used 46+ times

FREE Resource

51 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the function of autotrophs in the carbon cycle?

to use oxygen to produce glucose

to take in excess water

to use carbon dioxide to produce glucose

to feed on herbivores

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

competition

mutualism

parasitism

predator-prey

Tags

NGSS.MS-LS2-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The yucca plant releases a strong scent at night when the yucca moth is active. The yucca moth, attracted by the scent, gathers pollen from the yucca flower. The yucca moth then deposits her eggs and the pollen on another plant. This ensures that the plant will be cross-pollinated and that the yucca moth larvae have a steady food supply. Which relationship does this best illustrate?

commensalism

mutualism

parasitism

predation

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which environmental concern is most associated with burning fossil fuels?

global climate change

ozone layer destruction

decrease in levels of atmospheric carbon dioxide

Tags

NGSS.MS-ESS3-5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

1. Which substance is considered to be a factor affecting Earth’s ozone layer?

chlorofluorocarbons

ethyl alcohol

nitrogen gas

water vapor

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This graph represents changes in human population over a period of 2,000 years. What can be concluded from the graph?

Human population grew at a constant rate over the last 2,000 years.

Human population grew exponentially over the past 200 years

Human population reached its carrying capacity around the year 1900

Human population will begin to level off around 2010

Tags

NGSS.MS-ESS3-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which sequence shows increasing ecological levels of organization?

organism, population, community, ecosystem

ecosystem, population, organism, community

community, ecosystem, population, organism

population, organism, ecosystem, community

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51 questions

What is the function of autotrophs in the carbon cycle?

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

Which environmental concern is most associated with burning fossil fuels?

1. Which substance is considered to be a factor affecting Earth’s ozone layer?

This graph represents changes in human population over a period of 2,000 years. What can be concluded from the graph?

Which sequence shows increasing ecological levels of organization?

What does a food web represent?

Water temperature would be an example of ...

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

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