Roots, stems and leaves continue to do what throughout their lives?
Options:
- (A) die
- (B) edible
- (C) expand
- (D) grow
- (E) growth
- (F) spread
- (G) live
- (H) propagate
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Let's think first: Most plants continue to grow throughout their lives. All seed plants have roots, a stem, and leaves. Roots, stems and leaves continue to grow throughout their lives.... So the answer is [(D)]


Copulation is generally preceded by what?
Options:
- (A) pollination
- (B) sound
- (C) Vibrates
- (D) impregnation
- (E) Decibels
- (F) fertilization
- (G) courtship
- (H) pollen
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Let's think first: Mating is generally preceded by courtship. Copulation starts early in the mating season and usually stops when nesting begins. Copulation is generally preceded by courtship.... So the answer is [(G)]


Male dogs use_ in urine to mark their territory.
Options:
- (A) ammonia
- (B) Chemical energy
- (C) proteins
- (D) semiochemicals
- (E) animals
- (F) heat produced
- (G) nitric oxide
- (H) They have thick fur
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Let's think first: Male dogs use pheromones in urine to mark their territory. Pheromones are a sub-category of semiochemicals. Male dogs use semiochemicals in urine to mark their territory.... So the answer is [(D)]


Marine animals find these to be a great source of food:
Options:
- (A) grain
- (B) nutrient
- (C) sponges
- (D) Energy.
- (E) sea vents
- (F) sodium
- (G) Energy
- (H) fungi
--
Let's think first: Sponges are a source of food for many species of fish. Fish and other marine animals abound here. Sponges are a source of food for many marine animals.... So the answer is [(C)]


What do humans eat?
Options:
- (A) Kelp
- (B) sugar
- (C) legumes
- (D) food
- (E) Eyes
- (F) Coral
- (G) animals
- (H) Squid
--
Let's think first: Mollusks are a major food source for other organisms, including humans. Interestingly, a squid is also a mollusk. Humans eat squid.... So the answer is [(H)]


What do fungi require?
Options:
- (A) Energy
- (B) food
- (C) allow growth
- (D) warmth
- (E) Exfoliation
- (F) Bodily water
- (G) evaporation
- (H) nitrogen
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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: Fungi are the only organisms that can decompose wood. Nitrogen Deficiency Decomposing wood requires nitrogen. Fungi require nitrogen.... So the answer is [(H)]