Environmental Science - Biodiversity

Which best describes a group of organisms that that has a high risk of extinction?

• species that reproduce slowly

• a small population

• species that do not migrate

• species that need a large habitat

Starting with the least inclusive, what are the three levels of biodiversity that we discussed in class?

• Ecosystem, species, genetic

• Species, genetic, ecosystem

• Genetic, species, ecosystem

• Genetic, ecosystem, species

Tags

NGSS.MS-LS4-4

NGSS.MS-LS3-1

NGSS.MS-LS3-2

An endangered species can be bred in captivity so that their offspring may be released back into nature. This is an example of

• Secondary succession

• A climax community

• Habitat fragmentation

• Captive-breeding program

Tags

NGSS.MS-LS2-5

Genetic diversity in a population is important to an ecosystem because

• it allows species to adapt to changes in the environment.

• it prevents invasive species from taking over.

• it prevents poaching.

• it allows native species to become keystone species.

Tags

NGSS.MS-LS4-4

Sea otters eat sea urchins and prevent them from eating all of the kelp. This kelp provides food and shelter for many other organisms in the ecosystem. The sea otter can be referred to as what?

• an invasive species

• a keystone species

• an endemic species

• an indicator species

Tags

NGSS.MS-LS2-4

How did zebra muscles find their way to America?

• By bird.

• From floating logs.

• They swam.

• In the ballasts of ships.

How do insecticides affect food webs?

• Producers overpopulate while secondary consumers starve.

• Producers die off and primary consumers starve.

• Producers are unaffected while consumers overpopulate.

• Primary consumers are the only populations that are affected.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-2

NGSS.MS-LS2-1

Germ-plasm banks

• involve breeding species in captivity then reintroducing them into nature.

• store genetic material, such as seeds, for future use.

• house the few remaining members of a species.

• protect natural habitats.

Tags

NGSS.MS-LS2-5

NGSS.MS-LS4-5

Habitat fragmentation can destroy habitats and increase competition for resources. What is it?

• Cutting down all of the trees.

• Raising animals in zoos, then putting them back into nature.

• Many species becoming extinct quickly.

• The breaking up of habitats by building roads or cutting down trees.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Which is NOT a major provision of the Endangered Species Act?

• Protection of threatened or endangered species.

• Preventing the government from jeopardizing listed species.

• Preparing recovery plans for each listed species.

• Preventing invasive species from entering the United States.