Animals having a built-in thermostat to maintain constant body temperature are known as

Small animals have a larger surface area relative to their volume,so they tend to lose body heat very fast when it is cold outside. Then they have to expend much energy to generate body heat through metabolism. This is the main reason why very small animals are rarely found in polar regions. Which of the following explains why small animals are more easily able to climb up a rock compared to large animals?

Read the given statements and determine how many of them are incorrect.
$(1)$ Regional and local variations in habitats create a wide variety of biomes.
$(2)$ Temperature,light,and soil are the key elements for the physical and chemical variations in an ecosystem.
$(3)$ Tuna fish are found in the ocean and are classified as warm-blooded and homeothermic animals.
$(4)$ Red algae are found in the deep-sea regions.

Select the correct statement with respect to adaptations.

The biome distribution with respect to annual temperature and precipitation is given below. Identify the biomes $P, Q,$ and $R$.
$P \quad\quad Q \quad\quad R$

Consider the following four conditions $(i-iv)$ and select the pair that represents the adaptation of desert lizards to their environment.
$(i)$ Burrowing into the soil to escape high temperatures.
$(ii)$ Rapidly losing body heat during high temperatures.
$(iii)$ Basking in the sun and absorbing heat when the temperature is low.
$(iv)$ Insulating the body due to a thick layer of fat.