Why do the populations of invasive species grow so quickly?

Invasive species have no natural predators.

Invasive Species are native to an area.

Invasive species are prey to many animals.

Invasive species keep the ecosystems in equilibrium.

1. What makes a species invasive?

Moving to a new ecosystem and taking resources from natives

Plants that take up too much space

Which of the following is a key characteristic of most invasive species?

Ability to breathe in the air & in the water

Invasive species have a negative impact on...

Both the ecosystem and the economy

To qualify as a biodiversity hotspot, a region must meet two strict criteria:

It must have at least 1,500 vascular plants as endemics. A hotspot, in other words, is irreplaceable .

It must have 30% or less of its original natural vegetation. In other words, it must be threatened.

Is influenced by many factors, including abiotic factors, species interactions, level of disturbance, and chance events.

Biodiversity, aka biological diversity, usually refers to

the variety of species on Earth

the number of animal species in a specific area

the number of plant species in a specific area

Which of the following would be most effective in slowing the loss of biodiversity?

creating large parks/preserves in biodiversity hotspots

requiring every country to maintain a seed bank

Why is biodiversity important to ecosystems?

It helps populations adapt to ecological changes.

It increases at each level of the food chain.

Where are many critical biodiversity hotspots located?

islands, tropical rain forests, and coastal areas

cities and developed areas of the world

The lionfish is a venomous fish found primarily in the Red Sea and the Indian Ocean. In the 1990s, lionfish were accidentally released into the Atlantic Ocean, where they found abundant resources and favorable environmental conditions. Which of the following scenarios is most likely to result in the lionfish having a major impact on the communities into which they were introduced?

With no natural predators, the lionfish population will become very large.

Some native species of invertebrates will develop a resistance to lionfish venom.

How can humans best help an endangered species avoid extinction?

they can protect the animal’s habitat

they can put the animals in a zoo

they can take the animal to new habitats

Define genetic diversity

variation of genes within a species or population in a given area

variety of ecosystems in a given area

system made up of all the living and nonliving things in a given area

disturbance in the environment conditions that cause genetic changes to occur in organisms

Define ecosystem diversity

variety of ecosystems in a given area

variation of genes within a species or population in a given area

variety of life in Earth's land, freshwater, and marine ecosystems

changes to an ecosystem that affect how the parts of it interact

Which of these is NOT true about the Endangered Species Act

It is a law that must be obeyed around the world.

It protects all plants and animals on the endangered species list

Anyone who harms species covered by this act can receiver a fine ($)

It is enforces by US Fish & Wildlife Service

" Nature's Biological Library is burning even before we catalogued the titles of all the books stocked there". This implies that .....................

The species present in nature are compared to books stocked in a library, and that a large fraction of these species are going to be extinct, even before we have discovered them.

Nature has a library with books we did not read yet, and not catalogued. The library started to burn now.

Which of the following statements are true about latitudinal gradient?

Species diversity decreases as we move away from the equator towards poles.

Species diversity is more in temperate latitude, than, other latitudes.

Species diversity is more in poles than in equator.

Ecosystems and Biodiversity

Authored by Charles Martinez

Biology

10th - 12th Grade

NGSS covered

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113 questions

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MULTIPLE CHOICE QUESTION

2 mins • 5 pts

What is an invasive species?

A native (naturally found) species which are added to an area.

A non-native (not naturally found) species added to an area.

A keystone species in an environment

none of the above

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-2

MULTIPLE CHOICE QUESTION

2 mins • 5 pts

What does biodiversity mean?

Only one species in an area.

The different amount of species in an area

All abiotic life

Nitrogen fixation

Tags

NGSS.HS-LS2-2

NGSS.HS-LS2-6

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

The prefix Bio means

life

birds

science

ecosystems

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Why is biodiversity in an ecosystem so important?

Because it can help humans where to determine good places to develop farm land.

Because places that have a healthy biodiversity are unaffected by major disturbances.

Because having a high biodiversity allows ecosystems to withstand major changes.

Because having a high biodiversity allows for fewer opportunities of competition for similar resources.

Tags

NGSS.HS-LS4-5

NGSS.HS-LS2-7

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

An ecosystem thrives with biotic and abiotic components. An example of an abiotic part of an ecosystem is ______________.

Bacteria

Fungus

Water

Decaying plants

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

All of the living and nonliving components that interact in an environment.

population

ecosystem

community

organism

Tags

NGSS.MS-LS2-3

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What is the term used to describe all living things in an ecosystem?

Biotic Factors

Abiotic Factors

Environmental Factors

Population

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Ecosystems and Biodiversity

What is an invasive species?

What does biodiversity mean?

The prefix Bio means

Why is biodiversity in an ecosystem so important?

An ecosystem thrives with biotic and abiotic components. An example of an abiotic part of an ecosystem is ______________.

All of the living and nonliving components that interact in an environment.

What is the term used to describe all living things in an ecosystem?

A species that plays a far more important in its community than its relative abundance might suggest.

A keystone species that creates or maintains habitat for other species.

Species that is found in only one area. Such species are especially vulnerable to extinction.

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