A platypus is an example of _.
Options:
- (A) Marsupial.
- (B) Monotremes.
- (C) insects
- (D) animals
- (E) killing insects
- (F) Amphibian.
- (G) Placental mammal.
- (H) matter vibrating
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Let's think first: Monotremes are mammals that reproduce by laying eggs. Well, platypuses are mammals, and they lay eggs. Platypuses are monotremes.... So the answer is [(B)]

What shows evolution over geologic time above the level of the species?
Options:
- (A) speciation events
- (B) Leptospirosis
- (C) cliffs
- (D) rapid expansion
- (E) peachleaf willow
- (F) swamp vegetation
- (G) Darwin
- (H) RNA
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Let's think first: Macroevolution is evolution over geologic time above the level of the species. Speciation events are thus examples of macroevolution. Speciation events show evolution over geologic time above the level of the species.... So the answer is [(A)]

What do most molds get their organic compounds from?
Options:
- (A) dead organisms
- (B) particles in the air
- (C) fossil fuels
- (D) aqueous solution
- (E) burning coal
- (F) living organisms
- (G) swamp vegetation
- (H) sunlight
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Let's think first: Most fungi get organic compounds from dead organisms. Fungi include yeasts, molds, and fleshy fungi. Molds get organic compound from dead organisms.... So the answer is [(A)]

What is the last stage of aerobic transportation?
Options:
- (A) formation of acetyl coenzyme A
- (B) Glycolysis
- (C) electron transport
- (D) Dehydration
- (E) citric acid cycle
- (F) flow of electrons
- (G) recovery time from fatigue
- (H) weight-lifting
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Let's think first: Electron transport is the final stage of aerobic respiration. Last, the final project is due. Electron transport in the last stage of aerobic respiration.... So the answer is [(C)]

Prokaryotes lack regions that do not code for proteins, while this type of living being has them:
Options:
- (A) bioaerosols
- (B) layers of fat
- (C) orchids
- (D) animals
- (E) critical organs
- (F) sensory neurons
- (G) eukaryotes
- (H) it needs them
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Let's think first: Introns are regions that do not code for proteins. Prokaryotes lack introns, whereas eukaryotes contain introns. Prokaryotes lack regions that do not code for proteins, while eukaryotes do have them.... So the answer is [(G)]

How do cells grow and repair themselves?
Options:
- (A) mitosis
- (B) alveoli
- (C) retina
- (D) rest
- (E) recovery
- (F) exercise
- (G) ligt
- (H) mechanical
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Let's think first: Cell division is how organisms grow and repair themselves. Mitosis is cell division. Organisms grow and repair themselves through mitosis.... So the answer is [(A)]