Ecosystems Review 4

Which situation describes a relationship in which an organism depends on a nonliving component?

• Plover bird cleaning a crocodile's teeth

• Whale spouting ocean water through blow hole.

• Algae living in coral reefs

• Squirrel hiding acorns in a tree.

Tags

NGSS.MS-LS2-3

Some facts about an animal called the prairie dog are listed in the box.

Which fact describes one way the prairie dog changes the environment to meet its needs?

• Fact 1

• Fact 2

• Fact 3

• Fact 4

Tags

NGSS.4-LS1-1

NGSS.5-LS2-1

A partial food web is shown.

In this food web, energy is transferred directly between...

• insects and snakes

• grasses and insects

• mice and cougar

• all of these

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

How many organism provide energy to the spider?

• One

• Three

• Four

• Six

Tags

NGSS.MS-LS2-3

Giant salvinia is an invasive aquatic plant in Texas. The population size of giant salvinia can double in two weeks. Which of the following is NOT a risk giant salvinia poses to an ecosystem?

• It outcompetes other plants for resources

• It replaces native plants that provide food and habitats for native animals.

• It decreases oxygen levels in the water.

• It increases the number of native plants in the area.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Some facts about nutria are listed in the box.

Which facts best describe the nutria as an invasive species?

• facts 1,2,and 3

• Facts 1, 3, and 6

• Facts 2, 3, and 4

• Facts 4, 5, and 6

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

The Lystrosaurus, a non-aquatic reptile, lived about 250 million years ago. Scientists found Lystrosaurus fossils on the continents of Antarctica, Africa, and Asia. What conclusion could scientists make based on the fossil evidence?

• Lystrosaurus fossils can be found on all three continents because the animals traveled on boats across the water.

• Lystrosaurus fossils can be found on all three continents because people took the animals with them when they moved to new locations.

• Lystrosaurus fossils can be found on all three continents because the environment had no oceans during the time these animals were alive.

• Lystrosaurus fossils can be found on all three continents because the continents were once connected.

Tags

NGSS.MS-ESS2-3

NGSS.MS-LS4-1

Many species of evergreen trees have waxy leaves shaped like thin needles.

How do thin, waxy needles help a tree survive?

• The shape and covering of the needles enable the tree to survive in colder climates.

• Needle-shaped leaves frighten predators and provide protection.

• Waxy leaves attract pollinators to promote seed growth.

• The broad shape of the needles helps the tree survive in hot, dry climates.

Tags

NGSS.MS-LS1-5

A student creates a chart that shows inherited traits and learned behaviors.

Which observation is classified incorrectly?

• Red petals on a rose

• White feathers on a dove

• Dog jumping through a hoop

• Bean vine climbing a Trellis

Which examples do NOT belong in the chart?

• Examples 1 and 2

• Examples 3 and 5

• Examples 1 and 7

• Examples 4 and 6

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4