Biology

Which of the following is a good definition of homeostasis?

• Homeostasis means that our body monitors our body and prevents from ever changing.

• Homeostasis means that our body doesn't regulate the different processes in our body.

• Homeostasis means that our body monitors and restores our body to their correct value after any changes.

• Homeostasis means that our body processes are equal and unchanging.

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NGSS.HS-LS1-3

DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTACGCAAC. This is an example of ___ mutation.

• Substitution

• Insertion

• Inversion

• Translocation

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NGSS.HS-LS3-2

When is a recessive allele expressed in offspring?

• when two copies are present

• when parents have no dominant alleles

• when the offspring is heterozygous

• when one copy is present

In which way are photosynthesis and cellular respiration similar?

• Both processes destroy energy.

• Both create energy.

• Photosynthesis breaks down sugar while cellular respiration produces sugar.

• Both processes transfer energy from one form to another.

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NGSS.HS-LS2-3

NGSS.HS-LS2-5

Which number contains the nucleic acid?

• 1

• 2

• 3

What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.

• oxygen, glucose, sunlight

• sunlight, oxygen, water

• water, oxygen, carbon dioxide

• carbon dioxide, sunlight, water

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NGSS.HS-LS2-5

What is the point of a feedback loop?

• To provide the body with more energy.

• To provide the body with more food.

• To make sure the conditions in the body are always changing.

• To make sure the conditions in the body remain stable.

Tags

NGSS.HS-LS1-3

These two body systems regulate feedback mechanisms.

• Skeletal & Muscular

• Skeletal & Endocrine

• Muscular & Nervous

• Endocrine & Nervous

Tags

NGSS.HS-LS1-3

You are alone on an island in the middle of the Atlantic Ocean. You are hot and thirsty, so you want to drink water from the ocean. You think about biology class and you decide:

• to drink the ocean water because the extra salt will quench your thirst.

• not to drink the ocean water because the extra salt will cause you to dehydrate.

• to drink the ocean water because your cells will burn more fat due to the salt intake.

• not to drink the ocean water because the extra salt will cause your cells to burst.

Tags

NGSS.HS-LS1-3

A virus consists of:

• RNA or DNA and a cell membrane

• RNA or DNA and a protein coat

• RNA and DNA and a protein coat

• proteins, cell membrane, and RNA