Which of the following organisms do not enter a state of dormancy to escape environmental stress?

The region consisting of long and severe winters and a growing season consisting of a few months of summers constitutes:

The vast majority of animals and nearly all plants cannot maintain a constant internal environment. What is this called?

Read the following statements with respect to the features of biomes and select the correct option for tropical rain forests:
$a.$ Buttress roots
$b.$ Vines,lianas and epiphytes are abundant
$c.$ Highly leached soils
$d.$ Soil has high base content
$e.$ $30-40 \; m$ tall canopy structure with $2-3$ strata only

Which scientist proposed that a population is a group of individuals of the same species?

Which rule states that mammals living in colder climates generally have shorter ears and limbs to minimize heat loss?