Embibe Experts Solutions for Chapter: Ecology, Exercise 2: KVPY PREVIOUS YEAR QUESTIONS

Chlorofluorocarbons $\left(\mathrm{CFCs}\right)$ are believed to be associated with cancers because,

The figure below demonstrates the growth curves of two organisms $\mathrm{A}$ and $\mathrm{B}$ growing in the same area. What kind of relation exists between $\mathrm{A}$ and $\mathrm{B}?$

In some species, individuals forego reproduction and help bring up another individual's offspring. Such altruistic behaviour CANNOT be explained by which of the following?

Lions in India are currently restricted to Gir, Gujarat. Efforts are being made to move them to other parts of the country. This is because they are MOST susceptible to extinction due to infectious diseases under the following conditions when present as

Which one of the following interactions does NOT promote co-evolution?

Stratification is more common in which of the following?

A desert lizard (an ectotherm) and a mouse (an endotherm) are placed inside a chamber at $15°\mathrm{C}$ and their body temperatures [$\mathrm{T}\left(\mathrm{L}\right)$ for the lizard and $\mathrm{T}\left(\mathrm{M}\right)$ for the mouse] and metabolic rates [$\mathrm{M}\left(\mathrm{L}\right)$ for the lizard and $\mathrm{M}\left(\mathrm{M}\right)$ for the mouse] are monitored. Which one of the following is correct?

Human height is a multi-genic character. If the heights of all the individuals living in a metropolis are measured and the percentages of the population belonging to a specific height are plotted as shown below, which of the plots would represent the most realistic distribution?