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Villis are specialized for absorption in the small intestine as they have a thin wall, one cell thick, which enables a shorter diffusion path.

Butterflies are important pollinators to most agricultural crops.

The males display their beautiful fanned trains as part of their courtship behaviour to the Peahens.

An ecosystem consists of all the biotic and abiotic factors that influence that community.

Common abiotic factors are atmosphere, chemical elements, sunlight/temperature, wind and water, all other options are instrument used to measure these apart from microscope which can be used to observe small objects, even cells.

Nephridia remove metabolic wastes from an animal's body. Nephridia come in two basic categories: metanephridia and protonephridia.

Amphibians utilize gills for breathing early in life, and develop primitive lungs in their adult life; additionally, they are able to breathe through their skin.

Coordination of voluntary movements. Most movements are composed of a number of different muscle groups acting together in a temporally coordinated fashion. One major function of the cerebellum is to coordinate the timing and force of these different muscle groups to produce fluid limb or body movements.

The ability of the eye to focus distant as well as nearby objects clearly on the retina of the eye is called accommodation. When our eyes see distant objects then the ciliary muscles relax and the focal length is maximum in this position.

A community is formed by populations of different species living together and interacting with each other. A community forms an ecosystem by its interaction with the abiotic environment.

competition between species in a particular habitat is a biotic factor of ecological primary succession.

Phytoplankton are microscopic marine organisms that sit at the bottom of the food chain, most phytoplankton are buoyant and float in the upper part of the ocean. However, they are not heterotrophic like the zooplanktons. microbes are living organisms around us that we can't see with our naked eyes. nektons are organisms that are able to swim and move independently of current.

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

Anabolism centers around growth and building the organization of molecules. In this process, small, simple molecules are built up into larger, more complex ones while Catabolism is what happens when you digest food and the molecules break down in the body for use as energy.

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