Competition in Ecosystems

A small group of goats are kept in the petting section of a local zoo. Competition would occur between goats in this area if which of the following changes were made?

• Adding to the amount of food given to the goats

• Increasing the number of goats in the petting area

• Giving the goats water less each day for a month

• Allowing fewer people access to petting the goats

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

In a forest, two trees are growing next to each other. Which of the following describes two natural resources that both trees compete for in this area?

• sunlight and water

• Root strength and length

• cellular structure and function

• access to nesting birds and insects

Tags

NGSS.MS-LS2-1

When two species with similar needs share a habitat with limited resources, the likely outcome is that -

• the organisms will compete for the resources

• the resources will increase over time

• both populations will increase

• new populations will enter the habitat

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following is an example of a way in which rainforest plants depend on other organisms to meet a need?

• Absorbing sunlight to make their own food

• Drawing water from the soil with their roots

• Adding material to the soil when they decay

• Reproducing when insects pollinate them

Tags

NGSS.MS-LS1-4

A student wants to investigate competition between two populations of organisms. The investigation will need to include two species that -

• Have the same needs

• Reproduce at a slow rate

• Do not depend on water

• Live in different biomes

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Competition occurs when -

• Resources are abundant and population density is low

• All populations in an ecosystem occupy different niches

• The habitat is large and the population is spread out

• Niches overlap and population numbers are high

A mongoose depends on other organisms when it does all of the following EXCEPT

• eating seeds

• hiding in tall grass

• stealing bird eggs

• nesting in a burrow

Tags

NGSS.MS-LS2-2