According to the biological species concept, members of the same species look alike primarily because they ____
a. live in the same environment
b. share the same gene pool
c. have a common ancestor
d. have stopped evolving
e. are adapted to the same life style
ANSWER: b
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__________ are heterotrophs that grow as a mesh of
absorptive filaments. Some are plant pathogens. Fill in the blank(s) with the appropriate word(s).
A straight-line diagram illustrating the flow of food energy from prey to predator is referred to as a food ________
Fill in the blank(s) with correct word
A marine fish with a cold body temperature that matches its cold surroundings is an example of
A. regulating. B. conforming. C. conditioning. D. negative feedback.
In differentiating fungi from plants and animals, which of the following statements is NOT true?
A. The energy reserve of fungi is starch while the energy reserve of animals is glycogen. B. Plants have cell walls of cellulose; fungi have cell walls of chitin. C. Animals are heterotrophic by ingestion while fungi are heterotrophic by absorption. D. Fungal spores develop into haploid hyphae; in animals, haploid gametes combine to form a diploid organism.