Proteins are made in organelles within the what?
Options:
- (A) cytoplasm
- (B) Most plants
- (C) bacteria
- (D) alveoli
- (E) virus
- (F) organ
- (G) Conifers
- (H) phylum
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Let's think first: Ribosomes are structures in the cytoplasm where proteins are made. Ribosomes and other organelles begin to duplicate . Proteins are made in organelles within the cytoplasm.... So the answer is [(A)]

_ 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)]

What stimulates the reproductive organs to develop into male organs?
Options:
- (A) Something coming from a gland
- (B) Chemical energy
- (C) A compound that donates proton
- (D) certain anabolic hormones
- (E) Something made from fermented ricce
- (F) Electrical energy
- (G) heat produced
- (H) sensory neurons
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Let's think first: Testosterone stimulates the reproductive organs to develop into male organs. Examples of anabolic hormones are testosterone and nandrolone. Certain anabolic hormones stimulate the reproductive organs to develop into male organs.... So the answer is [(D)]

Adult sponges are
Options:
- (A) warm
- (B) immobile
- (C) food
- (D) parasites
- (E) strong
- (F) white
- (G) fertile
- (H) warm-blooded
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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 [(B)]

How many times can cells split into parts?
Options:
- (A) As many times as it likes
- (B) massive damage
- (C) No times
- (D) An infinite number of times
- (E) heat produced
- (F) during the day
- (G) Temperature changing
- (H) A set number of times
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Let's think first: Cells are programmed to divide only a set number of times. Parts means something has been divided. Cells are programmed to split into parts only a set number of times.... So the answer is [(H)]

What may become unbalanced if the lungs are working too fast or too slow?
Options:
- (A) Decibels
- (B) hair on head
- (C) air pressure
- (D) gasoline levels
- (E) Acids
- (F) energy usage
- (G) brain chemistry
- (H) blood pH
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Let's think first: Blood pH may become unbalanced if the rate of breathing is too fast or too slow. Mammals breathe with lungs. Blood pH may become unbalanced if the lungs are working too fast or too slow.... So the answer is [(H)]