How are populations different from communities?

Populations consist of one species; communities consist of many species

Populations consist of animals only; communities can contain plants and fungi

Populations can contain plants and fungi; communities consist of animals only

Wind is considered to be an abiotic factor because it

is not related to biodiversity.

Food webs are models that show

networks of feeding relationships.

only primary consumers in an ecosystem.

Decomposers are important to ecosystems because they

return vital nutrients to the environment.

Predation is best described as

one organism capturing and eating another.

an interaction in which two species benefit from each other.

an interaction in which one species benefits and other is not affected.

Which of these is an example of parasitism?

A leech feeds on a host's blood.

A squirrel stores food in a tree hole.

A polar bear kills and eats a seal.

Which interaction best illustrates the concept of mutualism?

nitrogen-fixing bacteria in root nodules of legumes

infectious bacteria living on the blood of a host

wolves and arctic foxes feeding on snowshoe rabbits

Producers are single & multicellular organisms, such as algae and flowering plants, that make their own food. How do these organisms produce their own food?

they convert sunlight into chemical energy

they exchange RNA with other organisms

A community in which barn owls and snakes consume only mice is being observed. If the number of snakes increases, which of the following is most likely to happen FIRST?

the mouse population will decrease

the barn owl population will increase

the barn owl population will decrease

Corals live near the ocean surface in some warm regions of the world. The corals provide a home for algae. The algae, in turn, produce food that is used by the corals. Which is a biotic factor in this ecosystem?

the amount of sunlight that reaches the coral

Which process is a source of phosphorus in ecosystems?

respiration by plants & animals

How might the carbon cycle be directly affected if bacteria and fungi needed for decomposition of dead animals & plants were scarce?

the recycling of nutrients into the soil for fossil fuels would be in short supply

plant transpiration would be unable to take place

sunlight would be in short supply limiting photosynthetic activity

What would Earth be like without the greenhouse effect?

the same temperature as it is now

Human activity accidentally introduces an insect species into a new habitat. The introduced insects feed on trees and have no natural predators in their new habitat. What is the MOST LIKELY way this will impact the environment?

The population of introduced species will grow.

The introduced species will not thrive.

Predators will evolve to feed on the insects.

Researchers recently compiled data about 2,300 mammal species and 6,700 bird species and determined that the number of species found at tropic latitudes is greater than the number found at temperate and polar latitudes. Select all the statements below that BEST explain why biodiversity is greatest in the tropics.

2) Tropic latitudes experience warm temperatures with less seasonal changes in climate.

3) There is a large amount of annual precipitation in tropic latitudes.

4) Regions near the equator have a longer growing season for plants.

1) There is less land in temperate and polar latitudes.

5) Temperate and polar latitudes have a large amount of water from snowmelt.

Ecology Review

Authored by Wade McLeod

Biology

10th Grade

NGSS covered

Used 8+ times

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47 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A food chain contains oak trees (producer), mice (herbivore), black rat snakes (carnivore), and bald eagles (carnivore). How many trophic levels does this food chain have?

four

one

two

Tags

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A(n) _____ describes a specified environment including both biotic and abiotic factors.

population

ecosystem

biome

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Green plants that make their own food are called

consumers

omnivores

producers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which two cycles depend directly on photosynthesis?

the nitrogen cycle and the phosphorus cycle

the oxygen cycle and the carbon cycle

the carbon cycle and the phosphorus cycle

Tags

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A white-tailed deer would be an example of a(an)

organism.

community.

abiotic factor.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A moose is considered to be a consumer because it

gets energy by eating other resources.

uses sunlight for energy.

makes its own food.

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What animals eat both producers and consumers?

chemotrophs

omnivores

autotrophs

Tags

NGSS.MS-LS2-3

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Ecology Review

A food chain contains oak trees (producer), mice (herbivore), black rat snakes (carnivore), and bald eagles (carnivore). How many trophic levels does this food chain have?

A(n) _____ describes a specified environment including both biotic and abiotic factors.

Green plants that make their own food are called

Which two cycles depend directly on photosynthesis?

A white-tailed deer would be an example of a(an)

A moose is considered to be a consumer because it

What animals eat both producers and consumers?

Most producers get energy from the Sun using the process of

Which process is part of the hydrologic cycle?

Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called:

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