What disease is caused when mitosis is regulated?
Options:
- (A) tuburculosis
- (B) death
- (C) HIV
- (D) disease
- (E) illness
- (F) arthritis
- (G) Toxicity
- (H) cancer
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Let's think first: Cancer is a disease that occurs when the cell cycle is no longer regulated. Mitosis is part of the cell cycle. Cancer is a disease that occurs when mitosis is no longer regulated.... So the answer is [(H)]


What is true of all adult sponges?
Options:
- (A) they are immobile.
- (B) at or near the margins
- (C) They may not survive.
- (D) water conservation
- (E) Light passing through water
- (F) competition
- (G) To keep their body heat.
- (H) permineralization
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Let's think first: Adult sponges are sessile. Sessile Attached permanently, immobile. Adult sponges are attached permanently, immobile.... So the answer is [(A)]


What contains most of the energy used by people worldwided?
Options:
- (A) heat
- (B) Light
- (C) coal
- (D) grasses
- (E) Cooking
- (F) glucose
- (G) A computer
- (H) gasoline
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Let's think first: Grasses supply most of the food consumed by people worldwide. Because food contains energy. Grasses supply most of the energy used by people worldwide.... So the answer is [(D)]


What do the building blocks of dna bind together to form?
Options:
- (A) A compound that donates proton
- (B) colors of the spectrum
- (C) Electrical energy
- (D) chain called a polynucleotide
- (E) Something with exactly eight protons
- (F) Something that makes plants green
- (G) Something with a head, thorax, and abdomen
- (H) biological diversity
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Let's think first: Many nucleotides bind together to form a chain called a polynucleotide. Nucleotides are the building blocks of DNA . The building blocks of DNA bind together to form a chain called a polynucleotide.... So the answer is [(D)]


One tumor suppressor protein which often results in cancer when it stops functioning is:
Options:
- (A) gene
- (B) p53
- (C) tumors
- (D) HIV
- (E) enzyme
- (F) tRNA
- (G) DNA
- (H) TRH
--
Let's think first: Cancer is a disease that occurs when the cell cycle is no longer regulated. Another critical protein in regulating the cell cycle is the tumor suppressor protein p53 . Cancer is a disease that often results when tumor suppresor proteins, like p53, stop functioning.... So the answer is [(B)]


What happens when cell walls relax?
Options:
- (A) evaporation
- (B) permineralization
- (C) preventing heat transfer
- (D) allow growth
- (E) it keeps an organism warm
- (F) air cools
- (G) Cell walls expand
- (H) heat produced
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Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Let's think first: Dilation occurs when cell walls relax. Blood flow is improved by vitamin E and it causes blood vessels to dilate or expand. When cell walls relax, they expand.... So the answer is [(G)]