LS 4.1

What would most likely happen to the zebra population if the cheetah population was eradicated?

• The zebra population would increase greatly.

• The zebra population would decrease.

• The zebra population would decrease greatly.

• The zebra population may increase slightly, because two other predators are still present.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-1

NGSS.MS-LS2-2

When a non-native species is introduced to a new ecosystem and begins to cause harm, it is then referred to as a/an…

• Invasive species

• Native population

• Native species

• Monoculture

Invasive species cause damage to ecosystems by…(2 answers)

• Increasing biodiversity

• Outcompeting native species, causing the native species to decrease

• Decreasing biodiversity

• Increasing native plant or animal populations

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Biodiversity refers to…

• the variety of species in an ecosystem

• extinct species

• the rate of species decline

• nonrenewable resources

Tags

NGSS.MS-LS2-5

Identify the two types of communication the

bear is using to communicate with other animals in the following scenario.

The bear is scratching the tree to mark his territory. He is also leaving some of his scent behind for other animals.

• Chemical and auditory

• Auditory and tactile

• Tactile and visual

• Visual and chemical

Tags

NGSS.4-LS1-2

Mistletoe extracts water and nutrients from the

spruce tree, robbing the tree of nutrients. This

is an example of …

• commensalism

• parasitism

• mutualism

• predation

Tags

NGSS.MS-LS2-1

Farmers use pesticides to stop insects and mice from ruining our crops. What problem does this create for insects and mice?

• Predation

• Natural disaster

• Drought

• Food scarcity

Tags

NGSS.MS-LS2-4

NGSS.MS-ESS3-3

Which organism represents an omnivore in the following food web?

• coyote

• vulture

• hawk

• mouse

Which organism represents an herbivore?

• Coyote

• Vulture

• Grasshopper

• Mouse

Tags

NGSS.MS-LS2-2

Which organisms represent carnivores?

• The hawk and snake because they eat producers.

• The coyote and vulture because they eat the remains of dead animals.

• The grasshopper and mouse because the only eat consumers.

• The hawk and coyote because they only eat consumers.