What have a centralized nervous system with a brain?
Options:
- (A) objects that have mass
- (B) warm-blooded
- (C) Earth orbiting the Sun
- (D) jellyfish
- (E) salmon only
- (F) bass only
- (G) bass and salmon
- (H) chickens
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Let's think first: Fish have a centralized nervous system with a brain. Fish include bass and salmon. Bass and salmon have a centralized nervous system with a brain.... So the answer is [(G)]

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
--
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)]

Cells obtain energy from the blood with the help of
Options:
- (A) sweating
- (B) batteries
- (C) pancreas
- (D) electron
- (E) insulin
- (F) alveoli
- (G) oxygen
- (H) sunlight
--
Let's think first: Insulin helps cells take up glucose from the blood. Blood Glucose Blood Glucose Glucose is the principal source of energy for mammalian cells. Insulin helps cells take up energy from the blood.... So the answer is [(E)]

Bees are attracted to?
Options:
- (A) plant life
- (B) tree bark
- (C) orchids
- (D) plants
- (E) flowers
- (F) plant stems
- (G) shrub leaves
- (H) bushes
--
Let's think first: Flowers attract animal pollinators. Bees are effective pollinators. Flowers attract bees.... So the answer is [(E)]

Arteries generally carry blood full of
Options:
- (A) He
- (B) Au
- (C) O3
- (D) O2
- (E) DDT
- (F) Ni
- (G) CO2
- (H) gas
--
Let's think first: Arteries generally carry oxygen-rich blood. About O2, every living thing requires oxygen in order to live. Arteries generally carry blood full of O2.... So the answer is [(D)]

Mushrooms are nonphotosynthetic and cannot what?
Options:
- (A) reproduce
- (B) make food to grow
- (C) be seasoned
- (D) Chemical energy
- (E) Change colors
- (F) refract or absorb.
- (G) be eaten
- (H) be absorbed
--
Let's think first: Fungi lack chlorophyll, so they cannot make food by photosynthesis as plants can. Like a mushroom, it lacks chlorophyll and is nonphotosynthetic. Mushrooms are nonphotosynthetic and cannot make food to grow.... So the answer is [(B)]