MS Web of Life- Why did the dinosaurs go extinct?

Which correctly shows the flow of energy through a food web?

• Producers → decomposers → consumers

• Producers → consumers → decomposers

• Decomposers → consumers → producers

• Producers → consumers → producers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Choose the statement that most accurately describes why the dinosaurs died.

• The dinosaurs died from earthquakes set off by the asteroid impact.

• The dinosaurs burned up instantly from a giant fireball caused by the asteroid.

• Most dinosaurs starved due to the collapse of their food webs

• Most dinosaurs suffocated because they couldn’t breathe air full of asteroid dust.

• The dinosaurs froze to death when the sun was blocked out.

Tags

NGSS.MS-LS4-1

Which organisms were most likely to survive the Cretaceous extinction? Mark as many choices as you want.

• Omnivores

• Herbivores

• Small animals

• Decomposers

• Carnivores

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-4

Scientists have reason to think that NOT ALL of the dinosaurs died in the Cretaceous extinction. They have evidence that birds are direct descendants of dinosaurs.

• True

• False

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

A large crater was discovered in the Yucatán Peninsula, Mexico (Chicxulub Crater). Scientists dated the crater to near the end of the Cretaceous period. The crater at Chicxulub could have been the site where a large asteroid hit the Earth and caused the dinosaur extinction.

• True

• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

NGSS.MS-LS4-1

Dust from volcanoes can cause temperatures to drop and plants not to grow, but dust from an asteroid impact could not do the same thing.

• True

• False

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Scientists found a layer of asteroid dust in rocks all around the world. In younger rocks above that layer, there are no dinosaurs. The layer of asteroid dust shows that the entire Earth was affected by dust from an asteroid impact. It could have blocked the sun and caused the dinosaurs to go extinct, which is why we don’t find dinosaur fossils in more recent layers of rock.

• True

• False

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1