Coral reefs provide what to many living beings in the ocean
Options:
- (A) Chemical energy
- (B) salt and water.
- (C) shelter and amusement
- (D) survival
- (E) important habitats
- (F) food and water
- (G) water and fun
- (H) food and shelter
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Let's think first: Coral reefs provide food and shelter to many ocean organisms. Organisms or living beings are literally things that are alive. Coral reefs provide food and shelter to many ocean living beings.... So the answer is [(H)]

What process reads and regulates gene expression?
Options:
- (A) organs
- (B) sensory neurons
- (C) A computer
- (D) Plants growth
- (E) translation
- (F) sweating
- (G) heat or cold
- (H) Most plants
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Let's think first: Translation reads the genetic code in mRNA and makes a protein. Gene expression can be regulated at the level of translation of an mRNA into a protein. Translation reads and regulates gene expression.... So the answer is [(E)]

What forms secondary vascular tissues in trees?
Options:
- (A) allow growth
- (B) primary growth
- (C) secondary growth
- (D) In their leaves
- (E) end growth
- (F) mating
- (G) Most plants
- (H) shrub beds
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Let's think first: Secondary growth forms secondary vascular tissues and bark. All trees have bark. Trees secondary growth forms secondary vascular tissues.... So the answer is [(C)]

_ allow water to penetrate the soil.
Options:
- (A) crawfish burrows
- (B) major threat to health
- (C) Deposition
- (D) bending light rays
- (E) earthworm homes
- (F) Exfoliation
- (G) termite burrows
- (H) Earthworm burrows
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Let's think first: Earthworm burrows help aerate soil, which is also good for plants. Aeration breaks up the soil and allows water to penetrate. Earthworm burrows allow water to penetrate the soil, which is good for plants.... So the answer is [(H)]

P16 is an example of what type of thing that causes cancer when it stops functiong properly?
Options:
- (A) Toxins
- (B) edema
- (C) gene
- (D) ferns
- (E) CO 2
- (F) PDAs
- (G) HIV
- (H) albino
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Let's think first: Cancer is a disease that occurs when the cell cycle is no longer regulated. P16 is a regulator of the cell division cycle. Cancer is a disease that occurs when genes like P16 stop functioning properly.... So the answer is [(C)]

What does vision give you?
Options:
- (A) ability to eat
- (B) characteristics
- (C) ability to taste
- (D) ability to sense light
- (E) ability to sense sound
- (F) It gets more light
- (G) Something that is self-aware
- (H) Your sensory system picks it up
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Let's think first: Sight is the ability to sense light, and the eye is the organ that senses light. Vision begins with sight. Vision is the ability to sense light and the eye is the organ that senses light.... So the answer is [(D)]