Carrying capacity is
A) seldom reached by marine producers and consumers because of the vast resources of the ocean.
B) the maximum population size that a particular environment can support.
C) fixed for most species over most of their range most of the time.
D) determined by density and dispersion data.
E) the term used to describe the stress a population undergoes due to limited resources
Ans: B) the maximum population size that a particular environment can support.
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Figure 32.7
The transporter indicated by the letter "A" in the above figure represents a(n) ____.
A. active Br transporter B. sodium-potassium cotransporter C. passive potassium transporter D. calcium-phosphorus transporter E. sodium-calcium transporter
Birds and insects both have wings, but we do not consider this similarity as evidence of relatedness because
A. the wings are not homologous structures with a common ancestral origin. B. bird wings, but not insect wings, function on the physics principles of lift. C. there is no fossil link between these groups. D. birds and insects did not evolve in the same region or live at the same time period. E. insect wings are vestigial.
If the chromosome number were not halved when gametes are produced, what would be the result of fertilization?
A) The zygote would undergo meiosis again to halve the number of chromosomes. B) The zygote would have double the number of chromosomes as the parents. C) They zygote would have the same number of chromosomes as the parents. D) The zygote would have half the number of chromosomes as the parents.
True or False: Neutrophils present in higher- than-normal numbers in blood or at a site of inflammation indicate an active response to a current infection
a. TRUE b. FALSE