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Insects are widespread and adapted to all types of environment even the driest and hottest places on earth.

Chromatophores are cells that produce color, of which many types are pigment-containing cells, or groups of cells, found in a wide range of animals including amphibians, fish, reptiles, crustaceans and cephalopods. Mammals and birds, in contrast, have a class of cells called melanocytes for coloration.

Aestivation is characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions. It takes place during times of heat and dryness, the hot dry season, which are often the summer months.

No expanded working has been attached for this question yet. The verified answer is Option A.

Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore. Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata.

Plant cuticle is the outermost layer of plants, which covers leaves, fruits, flowers, and non-woody stems of higher plants. It protects plants against drought, extreme temperatures, UV radiation, chemical attack, mechanical injuries, and pathogen/pest infection.

Fat emulsification is the process of increasing the surface area of fats in the small intestine by grouping them into small clusters. This is the responsibility of bile, a liquid created by the liver and stored in the gallbladder. Actual digestion of the fats is then accomplished by lipase, an enzyme from the pancreas

Stomach acid's low pH level is largely attributable to one ingredient: hydrochloric acid (HCl).

Physiological stress can be defined as any external or internal condition that challenges the homeostasis of a cell or an organism. It can be divided into three different aspects: environmental stress, intrinsic developmental stress, and aging. That zone is option D

Zone II is the area representing the growth zone. And it starts from 25\(^0\)C and attains maximum temperature at the peak which is 50\(^0\)C.

suckers are the organs of attachment to the host tissues.

Tapeworms generally inhabit the intestines of humans and animals. They have a series of hooks (or suckers) on one end that they use to attach to the intestine to get nourishment from the host.

Stamens are the male reproductive organs of flowering plants. They consist of an anther, the site of pollen development, and in most species a stalk-like filament, which transmits water and nutrients to the anther and positions it to aid pollen dispersal

adaptations of entomophilous / insected pollinated flowers are the following; Very conspicuous flowers with brightly coloured petals and perianths. Small flowers aggregate into inflorescence to become conspicuous. Flowers are usually scented to attract insects.

Long-sightedness affects the ability to see nearby objects. You may be able to see distant objects clearly, but closer objects are usually out of focus. It can be corrected by using convex lens