In terms of parental care, choose the pair below that does not usually occur in nature.
A. Male seahorses – brood eggs
B. Female fish – guard eggs
C. Male bat – nurse young
D. Male and female birds – tending of young
E. Female kangaroo – nurse young
Answer: B
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The ____________ molecule is a long carbon-chain molecule that uses information stored in the ____________ molecule to copy the ____________ molecule
Fill in the blank(s) with correct word
In many ferns,
a. gametes are produced from meiosis. b. asexual reproduction occurs more frequently than sexual reproduction. c. fertilization is followed by formation of gametes. d. the gametophyte stage is completely dependent upon the sporophyte stage. e. more than one of these is true
A response an animal develops to a stimulus as a result of pleasant experiences occurring each time the stimulus is received is a kind of learning called
A. insight. B. instrumental learning. C. habituation. D. classical conditioning.
Please select the explanation for why the members of the bacterial family Enterobacteriaceae are commonly pathogenic to humans.
A) This family of bacteria commonly inhabits the human body as normal flora. B) Animals have these bacteria as normal flora, and since humans and animals are in close contact, the bacteria are easily transmitted to humans. C) Humans contact these bacteria easily from soil. D) Humans have no inherited resistance to these bacteria. E) As air contaminants, these bacteria easily are transmitted by respiratory route.