A man has three bags. There are 4 marbles of different colours in first bag, 5 marbles of different colours in second bag and 3 marbles of different colours in third bag. If two colours are such which are only in first and second bag and one colour is such which is in all the three bags, how many different colours are in all the three bags?

#Question id: 10327

#Unit 9. Diversity of Life Forms

A taxon, all of whose members have the same common ancestor, is

#Question id: 3502

#Unit 11. Evolution and Behavior

Sexual dimorphism (SD) is a pattern that is seen throughout the animal kingdom and differences between the sexes in coloration are common in many organisms. Following some statement are given

A) There are many mechanisms that drive the evolution of SD, the most accepted mechanism being sexual selection

B) Mate choice is an important proximate mechanism of sexual selection, often the sex with the higher reproductive investment is the ‘choosy’ sex

C) Larger species are more sexually dimorphic than smaller species

D) Terrestrial species tend to be more sexually dimorphic than arboreal species

Which of the following above statement is correct?

Which one of the following is correct?

#Question id: 9235

#Unit 9. Diversity of Life Forms

Agricultural lands frequently require nutrient augmentation because ________.

#Question id: 11480

#Unit 7. System Physiology – Animal

Most of the chemosensory neurons arising in the nasal cavity have axonal projections that terminate in the ________.

#Question id: 19874

#Unit 13. Methods in Biology