1
AIPMT 2008
MCQ (Single Correct Answer)
+4
-1
Consider the following four statements (1-4) about certain desert animals such as kangaroo-rat.
(i) They have dark colour and high rate of reproduction and excrete solid urine
(ii) They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs
(iii) They feed on dry seeds and do not required drinking water
(iv) They excrete very concentrated urine and do not use water to regulate body temperature
Out of these four, which two are correct-
A
(i) and (ii)
B
(ii) and (iii)
C
(iii) and (i)
D
(iii) and (iv)
2
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
A high density of elephant population in an area can result in :-
A
Mutualism
B
Interspecific competition
C
Predation on one another
D
Intraspecific competition
3
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
If the mean and the median pertaining to a certain character of a population are of the same value, the following is most likely to occur:-
A
A normal distribution
B
a T-shaped curve
C
A skewed curve
D
A bi-modal distribution
4
AIPMT 2007
MCQ (Single Correct Answer)
+4
-1
The population of an insect species shows an explosive increase in numbers during rainy season followed by its disappearance at the end of the season. What does this show ?
A
The food plants mature and die at the end of the rainy season
B
The population of its predators increases enormously
C
Its population growth curve is of J-type
D
S-shaped or sigmoid growth of this insect
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