Balance within the Ecosystems

1. The series of predictable changes that occurs in a community over time is called

• Natural selection

• Ecology

• Adaptation

• Succession

This species is the first species to populate an area

• Pioneer

• Keystone

• Genetic

• Adapted

An example of a biotic resource that people obtain from ecosystems is

• Oxygen

• Wood

• Sunlight

• Water

An example of an abiotic resource that people obtain from ecosystems is

• Bacteria

• Fish

• Water

• Trees

Tags

NGSS.MS-LS2-3

The most effective way to preserve biodiversity is through

• Captive breeding

• Habitat preservation

• Habitat destruction

• Habitat fragmentation

Tags

NGSS.MS-LS2-5

Environmental factors such as climate and disease can cause a species to become extinct

• True

• False

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-1

The study of where organisms live and how they got there is called

• Biodiversity

• Biogeography

• Biography

• Biogentics

A species that has disappeared from the earth is

• Threatened

• Extinct

• Endangered

• Diverse

Tags

NGSS.MS-LS4-1

What is a likely method of dispersal for seeds that are contained within a small berry?

• Wind

• Water

• An Animal

• Continental drift

Tags

NGSS.MS-LS2-2

How does primary succession differ from secondary succession?

• Primary succession occurs where no soil exists

• Primary succession follows a disturbance in an ecosystem

• Primary succession is a natural process

• Primary succession takes a short amount of time