Sexual reproduction is important to the survival of a species in a changing environment because

a)sexual reproduction requires less overall energy expenditure than asexual reproduction.
b)sexual reproduction produces genetically different individuals.
c)sexual reproduction requires only one individual.
d)sexual reproduction produces genetically-identical individuals.
e)All answers are correct.


b)sexual reproduction produces genetically different individuals.

Biology & Microbiology

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________ allows fish to camouflage themselves to avoid predators or ambush prey

a. Obliterative countershading b. Disruptive coloration c. Aposematic coloration d. Cryptic coloration

Biology & Microbiology

Interneurons are responsible for the distribution of sensory information and the coordination of motor activity.  They are also involved with all higher functions, such as memory, planning, and learning. The more complex the response to a given stimulus, the greater the number of interneurons involved.   Knowing this, what can you predict about the ratio of interneurons to sensory and motor neurons in the nervous system of higher animals?

A. Since interneurons connect the other two types, it is necessary to have only half as many interneurons as motor and sensory neurons. B. Interneurons likely outnumber all other types of neurons combined. C. There must be equal numbers of sensory neurons, motor neurons and interneurons. D. None of the answers are correct.

Biology & Microbiology

Why is cartilage important in sharks, rays, and skates?

A) it works as a respiratory structure B) it circulates blood flow C) it supports and gives structure D) it helps with digestion

Biology & Microbiology

Figure 12.5 The accompanying figure illustrates ____.

A. anaphase I B. metaphase I C. metaphase II D. crossing over E. migration

Biology & Microbiology