Which of the following organisms are subject to natural selection?
a. prokaryotes that reproduce asexually
b. single-celled eukaryotes that reproduce sexually
c. organisms living in a changing environment
d. organisms living in a stable environment
1. a and b only
2. b and c only
3. c and d only
4. a, b, c and d
The increase in the frequency of one phenotype in a wild population of fish could be due to:
a. an advantageous mutation.
b. increased reproductive success of individuals with that phenotype.
c. a change in the environment.
1. c only
2. a and b only
3. a, b and c
4. b and c only
Which of the following can be random processes?
1 genetic drift
2 mutations
3 artificial selection
1. 2 and 3 only
2. 1, 2 and 3
3. 1 and 2 only
4. none of them
Which of the following could be the outcome of evolution?
a) speciation
b) a change in allele frequency
c) increased biodiversity
1. b and c only
2. a only
3. a and c only
4. a, b and c
Which of the following refers to correct example(s) of organisms that have evolved due to changes in environment brought about by anthropogenic action?
(a) | Darwin's Finches of Galapagos islands |
(b) | Herbicide-resistant weeds |
(c) | Drug-resistant eukaryotes |
(d) | Man-created breeds of domesticated animals like dogs |
1. (a) and (c)
2. (b), (c) and (d)
3. only (d)
4. only (a)
Match the hominids with their correct brain size:
Column I | Column II | ||
(a) | Homo habilis | (i) | 900 cc |
(b) | Homo neanderthalensis | (ii) | 1350 cc |
(c) | Homo erectus | (iii) | 650-800 cc |
(d) | Homo sapiens | (iv) | 1400 cc |
Select the correct option.
Options: | (a) | (b) | (c) | (d) |
1. | (iv) | (iii) | (i) | (ii) |
2. | (iv) | (i) | (iv) | (ii) |
3. | (iii) | (ii) | (i) | (iv) |
4. | (iii) | (iv) | (i) | (ii) |
Match the scientists listed under column I with ideas listed column II.
Column l |
Column ll |
||
A. |
Darwin |
1 |
abiogenesis |
B. |
Oparin |
2 |
use and disuse of organs |
C. |
Lamarck |
3 |
continental drift theory |
D. |
Wagner |
4 |
evolution by natural selection |
Codes
Options: | A | B | C | D |
1. | 1 | 4 | 2 | 3 |
2. | 4 | 1 | 2 | 3 |
3. | 2 | 4 | 3 | 1 |
4. | 4 | 3 | 2 | 1 |
Statement I: | In England, during the Industrial Revolution, the black-colored form of Biston Betularia became dominant over the light-colored form of moth because of natural selection, the darker forms were selected. |
Statement II: | Prior to the Industrial Revolution, the peppered moths exhibited protective mimicry and the light-colored moths were not noticed by predatory birds due to light-colored lichens on the bark of trees. |