Where can mucus like organisms be found?
Options:
- (A) the environment
- (B) Contaminated wounds
- (C) on food
- (D) on rotting logs and compost
- (E) an area swollen with pus
- (F) in the grass
- (G) in the refridgerator
- (H) mouth of rivers
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Let's think first: Slime molds are fungus-like protists commonly found on rotting logs and compost. True Slime Molds Slime molds are a mucus-like organism. Mucus like organisms can be found on rotting logs and compost.... So the answer is [(D)]

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 is required before a chemical change?
Options:
- (A) kinetic energy
- (B) energy usage
- (C) activation push
- (D) activation energy
- (E) activation switch
- (F) activation power
- (G) Burning fuel and air
- (H) Evaporation
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Let's think first: All chemical reactions require activation energy to get started. Chemical changes are a result of chemical reactions. Activation energy must be used before a chemical change happens.... So the answer is [(D)]

When do platyhelminthes reproductive organs develop?
Options:
- (A) when they become adults
- (B) It helps them survive
- (C) produce offspring
- (D) By wind and rain
- (E) during the day
- (F) members of their own species
- (G) an area swollen with pus
- (H) Something coming from a gland
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Let's think first: Adult worms go through a major transformation to develop reproductive organs. Marine flatworms belong to a major group of worms called the Platyhelminthes. Adult platyhelminthes go through a major transformation to develop reproductive organs.... So the answer is [(A)]

What do substances in the pituitary control?
Options:
- (A) To keep their body heat.
- (B) sweating
- (C) endocrine glands
- (D) temperature
- (E) preventing heat transfer
- (F) an organism's body
- (G) movement
- (H) Veins and arteries.
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Let's think first: Most pituitary hormones control other endocrine glands. Hormone therapy Hormones are substances that occur naturally in the body. Substances in the pituitary control the endocrine glands.... So the answer is [(C)]

What has a characteristic life cycle that includes alternation of generations?
Options:
- (A) humans
- (B) leaves
- (C) Oak
- (D) dogs
- (E) Trees
- (F) cacti
- (G) amoeba
- (H) ferns
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Let's think first: All plants have a characteristic life cycle that includes alternation of generations. All ferns are shade plants. Ferns have a characteristic life cycle that includes alternation of generations.... So the answer is [(H)]