Balance Within Ecosystems

All of the following are examples of limiting factors except

• food

• soil

• space

• weather conditions

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If all members of a species disappear from Earth, the species is said to be

• extinct

• endangered

• threatened

• keystone

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

The mating of California condors in zoos is an example of

• habitat preservation

• captive breeding

• biodiversity

• habitat destruction

Tags

NGSS.MS-LS2-5

Which of the following is an example of how human activities may harm the balance in an ecosystem?

• primary succession

• wildlife preserves

• desertification

• planting native plants

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

The number of different species in an area is referred to as its

• niche diversity

• climate

• habitat fragmentation

• biodiversity

Tags

NGSS.MS-LS2-5

Which of the following is an example of a negative effect of agricultural technology on the environment?

• increased oxygen in the atmosphere

• use of fertilizers to increase crop yield

• clearing large tracts of forest for new farmland

• banning the use of DDT in 1972.

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

A species that influences the survival of many other species in an ecosystem is called a(n) _________________________.

• endangered species

• keystone species

In the process of _______________, the organisms that are best suited to their environments are most likely to survive and reproduce.

• natural selection

• elimination

• guessing

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

A diverse pool of ____________________ helps ensure that individuals in a species will pass a variety of traits to their offspring.

• jeans

• genes

• shorts

• leggings

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Setting aside a marsh as a wildlife refuge is an example of the _________________________ approach to protecting biodiversity.

• nice

• habitat preservation

• kind

• responsible

Tags

NGSS.HS-LS2-7