Organisms and P...

Which of the following factors have a positive effect on population density?

a. Immigration
b. Emigration
c. Natality
d. Mortality

Tight one to one relationship is observed between fig and female wasp. The female wasp uses the fig tree for which of the following?

a. Egg laying
b. Obtaining food for itself
c. Nourishment for larvae
d. Obtaining nectar

Which of the following associations shows the same relationship as an orchid and mango branch?

Balanus dominatus of rocky sea coasts of Scotland excluded the smaller Barnacle Chathamalus from the intertidal area. State the relationship mentioned in this sentence?

Which of the following options is true according to Allen's rule?

How does female anopheles mosquito benefit from its host?

A population pyramid with a wide base implies

Which of the following statements is/are correct?

1. Aquatic organisms never face any problem from water.
2. Geographical distribution is dependent upon level of thermal tolerance of different species.
3. Sunlight is insignificant for animals who are dependent on plants for food.

A large naturally occurring community of flora and fauna occupying a major habitat constitutes

Which of the following animals in North American desert has the capability to meet all its water requirements through internal oxidation of fats?