Changes in Organisms

In the following graph, the predator and prey populations change over time. What is the reason for the prey population increasing?

• The predator eats the prey

• The prey is eaten by the predator

• The predator runs out of food when the prey population is low

• The prey survives longer when the predator population is low

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A fox eats a squirrel. The population of squirrels has...

• increased.

• decreased.

• stayed the same.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The changes that occur in the body to overcome small problems due to changes in surroundings is known as __________

• adaptation

• acclimatisation

• camouflage

To add an organism that is not native - can make big changes to ecosystem.

• Over-grazing

• Pollution

• Disease

• Invasive Species

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Natural disasters can also change ecosystems. What can organisms do if a disaster happens?

• Fight, Survive, Struggle

• Move, Adapt, Die

• Stay, Sleep, Survive

• Eat, Sleep, Repeat

Tags

NGSS.MS-ESS3-2

NGSS.MS-LS2-4

What would cause a decrease in the rabbit population?

• An increase in grass growing

• A decrease in caterpillars

• An increase in owls

• An increase in fox

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of these populations is most likely to decrease if the number of grasshoppers decreases?

• plants

• frog

• praying mantis

• owl

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following statements correctly compares the life cycle of a frog and a dog?

• Both the frog and dog go through the same stages of their life cycle.

• The dog goes through more changes in their life cycle than the frog.

• The frog goes through more changes in their life cycle than the dog.

• The frog and dog are the same organism.

Which two organisms go through the most changes in their life cycles?

• 
• 
• 
• 

Which process allows organisms to better survive in their environment by developing new traits over generations?

• Adaptation

• Mutation

• Migration

• Extinction

Tags

NGSS.MS-LS4-4