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| Biological interactions |
1. Which
one of the following is/are true regarding biological interactions?
I.
The bread mold Penicillium is a common example
of ammensalism.
II.
In competition, both the species harmed.
III.
In antagonistic interaction, one species benefited
in the expense of the other.
IV.
In commensalism, one organism benefited. Other neither
benefited nor harmed.
A.
i, ii and iv
B.
i and iii
C.
iii and iv
D.
all of the above
2. match
the following
|
i.
Commensalism |
1. Sea
anemone and Hermite crab |
|
ii.
Obligate mutualism |
2. Remora
living with a shark |
|
iii.
Ammensalism |
3. Lichen |
|
iv.
Facultative mutualism |
4. Bread
mold |
A.
i-4, ii-3, iii-2, iv-1
B.
i-3, ii-4, iii-1, iv-2
C.
i-2, ii-3, iii-4, iv-1
D.
i-4, ii-2, iii-3, iv-1
3. the
term symbiosis was first used by
A.
Heinrich Anton de Bary
B.
Haeckel
C.
Huxley
D.
Darwin
4 4. Which
one is true?
A.
Commensalism when none of the interacting
populations affects each other.
B.
Symbiosis when the interaction is useful to both
the populations.
C.
Symbiosis when neither populations affect each
other
D.
Commensalism when the interaction is useful to
both the populations
5. Which
one of the following is not an example of endosymbiosis
A.
Nitrogen-fixing bacteria living in root nodules
on legume plants.
B.
Frankia which live in Alder tree root nodules.
C.
Barnacles that attach themselves to the jaw of
baleen whales.
D.
Single-celled algae inside reef-building corals.
6 6. One
animal attaching to another animal for transportation only is called
A.
Phoresy
B.
Inquilinism
C.
Metabiosis
D.
Parasitism
7. Match
the following
|
1. Phoresy |
i.
second organism uses something the first
created |
a) epiphytic plants |
|
2. Inquilinism |
ii.
One animal attaching to another animal for transportation
only |
b)
hermit crabs that use gastropod shells |
|
3. Metabiosis |
iii.
One animal Using a second organism for housing |
c) mites
on insects |
A.
1-ii-c, 2-iii-a, 3-i-b
B.
1-i-b, 2-ii-c, 3-iii-a
C.
1-ii-a, 2-i-c, 3-iii-b
D. 1-iii-c, 2-ii-b, 3-i-a
8. the high density of deer population in an area can result in
A.
Intraspecific competition
B.
Interspecific competition
C.
Predation on one another
D.
Mutualism
9 9. Which
one of the following is/are correct?
I.
Character displacement is a phenomenon in which
two species that live in the same habitat tend to diverge in those
characteristics that overlap.
II. The idea of character displacement was developed
by W. L. Brown and E. O. Wilson
III.
Character displacement increase competition
IV.
Character displacement is a short term effect of
competition
A.
I and III
B.
I and II
C.
II and III
D.
I and IV
10. Which
one of the following is NOT correct
a.
Competitive exclusion principle is a short term
effect of competition.
b.
Competitive exclusion principle occurs in
ecological time scale.
c.
Competitive exclusion principle is a long term
effect of competition.
d.
Competitive exclusion principle is also called
Gause’s principle
A.
a and b
B.
b only
C.
c only
D.
b and c
11. If
greater number of competitive species present in a habitat, each species will
tend to search food resources on a smaller part of the total available habitat. This is
termed as
A.
Neutralism
B.
Ecological compression
C.
Character displacement
D.
Competitive exclusion principle
12. Pick
out the wrong statement
A.
Allelopathy is a type of biological interaction,
in which an organism produces biochemicals that influence the growth and
survival of another organisms.
B.
Allelopathy is a type of biological interaction,
in which an organism provide shelter to
another organism
C.
Allelopathy is positive or negative
D.
Plants in the family Poaceae show allelopathic
traits
Answer key:
|
1 |
D |
|
2 |
C |
|
3 |
A |
|
4 |
B |
|
5 |
C |
|
6 |
A |
|
7 |
A |
|
8 |
A |
|
9 |
B |
|
10 |
C |
|
11 |
B |
|
12 |
B |
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