Unit 3 review

Why do some birds stay in Florida all year but only visit Maine for part of the year? The most likely reason is:

• Other birds push them out of Maine for a while.

• There are fewer predators for these birds in Florida.

• Food is available year-round in Florida, but only seasonally in Maine.

• These birds find better hiding spots in the part of the year when they're not in Maine.

Tags

NGSS.MS-LS2-1

In the African savanna, lions are the primary predator, and their main food source is the wildebeest. Zebras are also a prey species for lions. If the lion population in the savanna decreases, what possible effect could that have on the zebra population?

• The zebra population would decrease because the wildebeest population would decrease.

• The zebra population would increase because the lion population would decrease.

• The zebra population would decrease because the lion population would decrease.

• The zebra population would increase because the lion population would increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What's a simple way to help the environment?

• Turn off lights when you leave a room.

• Leave the lights on all the time.

• Throw plastic bottles in the trash.

• Keep the car engine running when it's not moving.

Tags

NGSS.MS-ESS3-3

The Burmese Python is an invasive species in the Florida Everglades. It is one of the largest snakes in the world, preying on a variety of wildlife in the region. They are known to eat mammals, birds, and even alligators. Since their introduction to the Everglades, they have established breeding populations. What is one way that the Burmese Python can impact Florida's natural ecosystems?

• displace native reptiles

• improve the balance of the ecosystem

• the reptiles will drink more Starbucks

• protect endangered species

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Alana is creating a food chain using pictures of different organisms. She has pictures of a grasshopper, a mouse, and an owl. Which living organism would she need to complete her food chain?

• snake

• bear

• sunflower

• butterfly

Tags

NGSS.MS-LS2-3

Lions are consumers. Which sentence tells how a lion gets energy from the Sun?

• Energy from the Sun is passed to lions when they drink water.

• Energy from the Sun is passed to lions when they hunt other animals.

• Energy from the Sun is passed to lions when they eat grass.

• Energy from the Sun is passed to lions when they scavenge for food.

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NGSS.MS-LS1-6

Based on this food chain, which of the following statements is correct?

• rats eat owls

• the food chain starts with the rat

• energy flows from the bug to the rat

• energy flows from the owl to the leaves

Tags

NGSS.MS-LS2-3

Where does the organisms in a food chain get their energy from?

• Air and water

• Sunlight

• Soil and minerals

• Decomposers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Dante is making a list of living things that cannot make their own food. Which living thing will be on Dante's list?

• moss

• maple tree

• fern

• chicken

Which organism in this food chain produces its own food?

• Frog

• Grasshopper

• Snake

• Grass

Tags

NGSS.MS-LS1-6