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| Age Pyramids |
1 1. The term metapopulation is coined
by
A. De Candolle
B. Julian Huxley
C. Richard Levins
D. Linnaeus
2. Which of the following is/are NOT
correct regarding age pyramids.
I.
A stable population is represented by a pyramid-shaped age structure.
II.
Birth
rate is high in expanding populations.
III.
Diminishing the population is a declining population
IV.
The pre-reproductive group is the smallest in a stable population.
A. I and II
B. II only
C. II and III
D. I and IV
vv 3. Survivorship curve is the graph
showing the number of individuals surviving to each age for a given species or
population. Match the following.
|
I.
Type I |
A. Mortality is high during the
initial stages of the life cycle |
1. Hydra |
|
II.
Type II |
B. Mortality is constant throughout the lifespan. |
2. Human |
|
III.
Type III |
C. Mortality is low until near the
end of life span |
3. Trees |
A. (I, A,3), (II, C, 1), (III, B, 2)
B. (I, C, 2), (II, B, 1), (III, A, 3)
C. (I, A, 2), (II, B, 3), (III, C, 1)
D. (I, B, 3), (II, A, 1), (III, C, 2)
4. Find the correct statement,
regarding population growth.
A. J-shaped growth curve represents
exponential growth at a constant rate
B. If the natality become equal to
carrying capacity, then the growth rate become zero.
C. Carrying capacity is the maximum
stable population size that a particular environment can support over a long
period of time
D. All of the above
5. Allee
effect is a phenomenon in which,
A. Growth
rate increase with population size
B. Growth
rate decrease with population size
C. Growth
rate has no effect on growth rate
D. None
of the above
6. In
an area, a specific group of insect population shows a rapid increase in during
the rainy season followed by its disappearance at the end of the season. What
does this show?
A. The
food crops mature and die at the end of the season.
B. Its
growth curve is of J-type curve.
C. The
population of its predators increase gradually
D. Its
population growth is sigmoid.
7. The unrestricted reproductive capacity of a population is called?
A. Fertility.
B. Biotic potential.
C. Birth rate.
D. Carrying capacity.
8. In every population, two forces are
acting each other to operate the growth and development. One of them is the
ability to reproduce at a given rate. The opposite force is?
A. Mortality.
B. Fecundity.
C. Biotic control.
D. Environmental resistance.
9. Which one is not related to K-
strategists?
A. Type III survivorship curve.
B. They are mostly specialists.
C. Smaller body and semelparity.
D. Long lifespan.
10. Which one is not a property of
r-strategists?
A. They are mostly generalists.
B. Survivorship curve is type II and
Type I
C. Larger body and iteroparity.
D. Short life span.
Answerkey:
|
1 |
C |
|
2 |
D |
|
3 |
B |
|
4 |
D |
|
5 |
A |
|
6 |
B |
|
7 |
B |
|
8 |
D |
|
9 |
C |
|
10 |
C |
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