etG selection 11.4.24

Marine systems are the largest of all earth's biomes. True or False?

• True

• False

Fill in the blank: The response in a feedback loop may be in the same direction (positive feedback) or in the opposite direction (____ feedback).

• Negative

• Neutral

• Circular

• Linear

Tags

NGSS.HS-LS1-3

Fill in the blank: Homeostasis involves the regulation of an internal environment with an ever-changing ____ environment.

• External

• Internal

• Static

• Controlled

Tags

NGSS.HS-LS1-3

What are keystone species?

• Autotrophic organisms

• Heterotrophic organisms

• Photosynthetic organisms

• Parasitic organisms.

Tags

NGSS.HS-LS2-6

Fill in the blank: Sea otters help maintain the balance in the ecosystem by keeping ______ populations in check.

• Urchin

• Ray

• Kelp

• Shark

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Variation in natural selection refers to ______.

• Differences within a species

• Similarities within a species

• No differences

• Random differences.

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

NGSS.HS-LS4-5

In directional selection, which of the following is true?

• Both extreme phenotypes are favored

• One of the two extreme phenotypes is favored

• The average phenotype is favored

• No phenotype is favored.

Tags

NGSS.HS-LS4-4

Robins typically lay fours eggs. If more then four eggs are produced then the baby chicks are malnourished while smaller egg numbers result in no viable (able to live) baby chicks. This is an example of

• stabalizing
• disruptive
• direction
• none of the above

Tags

NGSS.MS-LS1-4

If finches with large beaks and finches with small beaks increase in a population while finches with average sized beaks decreases, which pattern of natural selection has occurred?

• Directional selection
• Disruptive selection 
• Stabilizing selection

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-3

The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

Tags

NGSS.HS-LS4-4

NGSS.HS-LS4-2

NGSS.HS-LS4-5