Evolution by Natural Selection
Trending Questions
Q.
What is the law of natural selection?
Q.
What is speciation and natural selection?
Q. In a species, the weight of a newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 or 4.5 to 5 kg die. Which type of selection process is taking place?
- Cyclical selection
- Directional selection
- Stabilising selection
- Disruptive selection
Q.
Do Insects Recognize Humans?
Q.
Define natural selection.
Q. Industrial melanism is an example of :
- Drug resistance
- Darkening of skin due to smoke from inddustries
- Protective resemblance with the surroundings
- Defensive adaptation of skin against ultraviolet radiations
Q. Darwin’s theory of natural selection failed to explain the
- arrival of fittest
- survival of fittest
- origin of species
- competitions
Q.
The animals of cold countries have relatively shorter and poorly developed ears, eyes, hairs and other phenotypic characters. This is known by which law?
Cope’s Law
Dollo’s Law
Allen’s Law
Bergmann's Law
