Environmental factors that cause a population to decrease

Environmental factors that cause a population to increase

Environmental factors that cause an ecosystem to decrease

Environmental factors that cause an ecosystem to increase

The largest population that an environment can support

The maximum number of populations a biome can support

The minimal number of individuals in a population

The smallest population that an environment can support

What is Primary Succession?

The series of changes that occur in an area where no ecosystem previously existed

The series of changes that occur in an area where there is soil remaining from a previous ecosystem

The series of changes that occur in an area where there is no need for pioneer species

The series of changes that occur in an area keystone species are removed

The cycle in which nitrogen gas is changed into forms of nitrogen that plants can use

The cycle in which nitrogen gas is changed into forms of carbon dioxide for photosynthesis

The cycle in which hydrogen gas is changed into forms of water that plants can use

The cycle in which phosphorous changed into forms of nitrogen that plants can use

Reproductive Potential

The rate at which a species can increase a population

The rate at which a species is attracted to another species

The rate at which a species can decrease a population

The rate at which a species has more offspring than another population

What is Secondary Succession?

The series of changes that occur in an area where there is soil remaining from a previous ecosystem

The series of changes that occur in an area where pioneer species are needed to make soil

The series of changes that occur in an area keystone species is removed

The series of changes that occur in an area where no ecosystem previously existed

What is a keystone species?

A species that is vital to a healthy ecosystem

One of the first species in an area

These are producers, they are the first in the energy pyramid

The organic circulation of carbon from the atmosphere into organisms and back again

The cycle in which oxygen gas is changed into carbon dioxide to produce glucose for photosynthesis

The organic circulation of carbon from the atmosphere and change nitrogen gas into forms of nitrogen that plants can use

The organic circulation of hydrogen from the atmosphere which is used in organisms to make carbon

What is an Invasive Species?

Species that enter new ecosystems and multiply, out competing and harming native species and their habitats

The early keystone species that are part of a new ecosystems

The early pioneer species that are part of a new ecosystems

A combination of a fungus and either an alga or an autotrophic bacterium that live together in a mutualistic relationship

How does the carbon in grass become part of a lion?

The carbon ends up in the lion's food chain.

Carbon from grass doesn't end up in a lion.

The lion breathes in carbon given out by the plant

What is the Competitive Exclusion Principle?

No two species can occupy exactly the same niche in exactly the same habitat at exactly the same time

Two species can occupy exactly the same niche in exactly the same habitat at exactly the same time as a mutualistic relationship

Two species always occupy the same niche in exactly the same habitat at exactly the same time for a long period of time

Every species shares a niche with another species to make sure they both can exist.

What is a Fundamental Niche?

Where an organism could live if no limiting factors were present

Where an organism really lives with limiting factors and competition

Where an organism makes its habitat

Where organisms with a mutualistic relationship live together.

What is a trophic cascade?

When there is an addition or removal of top predators. That creates changes in the food chain with predator and prey

This is the same as a food chain

This is what is shown in an energy pyramid

When there is an addition or removal of prey. That creates more food for predators

When does clumped population dispersion occur?

When resources are localized and organisms group around them

When resources are randomly spread and organisms randomly spread out

When individuals are territorial about their resources and keep eachother apart

The mortality rate of organisms following a type I survivorship curve is __________.

higher in post-reproductive years

fairly constant throughout life

lower after the organisms become established

Which of the following describes the population of elephants in Kenya from 1973-1989?

(immigration + births) – (emigration + deaths) < 0

(immigration + births) – (emigration + deaths) = 0

(immigration + births) – (emigration + deaths) = 1

(immigration + births) – (emigration + deaths) > 0

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.

Honors Ecology

Authored by Yolanda English

Science, Biology

9th - 10th Grade

NGSS covered

Used 62+ times

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40 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A population is...

A group of one species in one area

Multiple species that live in one area

All of the living and nonliving things in an area

None of these

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a host?

An organism that shares a resource

An organism on which a parasite lives

An organism that hunts prey

An organism that provides shelter for another organism

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

All the green plants that provide the energy for consumers.

Primary consumers

Decomposers

Producers

Herbivores

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An organism that feeds on a living host

parasite

predator

herbivore

producer

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Predation

An interaction in which both organisms benefit

An interaction in which one organism benefits and the other does not care

An interaction in which one organism kills another for food

An interaction in which one organism benefits and the other is harmed

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mutualism

An interaction in which both organisms benefit

An interaction in which one organism benefits and the other does not care

An interaction in which one organism kills another for food

An interaction in which one organism benefits and the other is harmed

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The diagram shows the transfer of energy from one organism to another

Food web

Ecosystem

Food chain

Energy Pyramid

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

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Honors Ecology

A population is...

What is a host?

All the green plants that provide the energy for consumers.

An organism that feeds on a living host

Predation

Mutualism

The diagram shows the transfer of energy from one organism to another

A non-living factor in an ecosystem

Commensalism

Habitat

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