Embibe Experts Solutions for Chapter: Organisms and Populations, Exercise 1: KCET (UG) 2019

In Amphibian and reptiles, the body temperature changes corresponding to external temperature. The organisms which show this kind of response is termed as -

Small mammals and birds are rarely found in polar regions. The reason is that

Identify the incorrect statement

Population size keeps changing depending on different factor/s such as:

Identify the correct statement/s from the following.
$1.$ Cuscuta is a chlorophyllous endoparasite
$2.$ The human liver fluke needs only one host to complete its life cycle
$3.$ The life cycle of endoparasite is more completed due to their extreme specialisation
$4.$ During the course of evolution the host bird's eggs have evolved to resemble the eggs of the parasitic bird.

Relate Column I with Column II with regard to predatory behaviour

Assertion (A): The Monarch butterfly feeds on poisonous weeds during its caterpillar stage.

Reason (R): It helps butterfly to become distasteful to the predator.

From the given options, identify the correct combination of population interactions that correspond to the symbols given here.