Biology Quiz 5

Competition for food, light and space is most severe in closely related species growing in the same area or niche. It is most severe in closely related species growing in the same habitat as these species will have the same niche, type of food they eat and same characteristics, etc.

Smallpox is an acute contagious disease caused by the variola virus, a member of the orthopoxvirus family. In 1980, the World Health Organization declared that smallpox had been eradicated.

In the fasting state, bears begin urea recycling and start losing fat tissue, although they retain their lean body mass. Such a medicine might be effective in treating obesity, as well as type II diabetes associated with it.

Tranquilizer is a drug which is designed for the treatment of anxiety, fear, tension, agitation, and disturbances of the mind, specifically to reduce states of anxiety and bring about calmness.

Loris, Alligator and Cow have teeth. Peacock, Ostrich, Tortoise, Owl, Crow and Kiwi do not have teeth. Birds do not have teeth, although they may have ridges on their bills that help them grip food. Turtles and tortoises don't have teeth. Instead, their mouths have a hard, sharpened edge that they use to bite with, kind of like a bird's beak.

Iodoform, also called triiodomethane, is used as an antiseptic. It is a yellow, crystalline solid belonging to the family of organic halogen compounds, used as an antiseptic component of medications for minor skin diseases.

Haliotis belongs to Mollusca. Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. It is sluggish invertebrates, with a thin fleshy envelope or mantle covering the visceral organs. Molluscs include mussels, scallops, oysters, periwinkles, whelks, squid, clams, snails, haliotis and octopus.

The fluid part of blood without corpuscles is called Plasma. Blood plasma is fluid part of blood in which corpuscles (blood cells) are absent, but contains proteins and other constituents of whole blood in suspension. Plasma is the largest part (about 55%) of blood.

As non-biodegradable wastes like plastic bags, glass bottles, etc., cannot be broken down by decomposers, their disposal poses a big problem. Recycling is one of the best solutions to get rid of non-biodegradable wastes.

Animal protein is called first-class protein because it is rich in essential amino acids. It is superior to plant protein because animal proteins contain a broad spectrum of amino acids with more vitamins and minerals than plant proteins.