science links

The study of morphology also reveals some organisms form links between two different groups. There is further evidence that evolution has taken place and it also shows the direction taken by the process of evolution. These organisms that show the features of two different groups are call..

Apart from the lungs, there are several associated organs and structures which together form the respiratory system. The respiratory system is closely linked with the circulatory system as the transport of the gases takes place through bloo..

Due to its small size the carbon atom can also form multiple bonds i.e., double and triple bonds with not only carbon but with atoms of other elements like oxygen, nitrogen, etc. The formation of these multiple bonds gives rise to a variety in the carbon compounds. Types and number of bond..

Study of fossils is called paleontology. Fossils are defined as preserved remains of a living organism that existed on earth a long time ago. Fossils are formed by the preservation of the remains of the organisms that existed in the earlier days. The dead bodies of the organisms are immediately co..

Hypothalamus, though a small region situated below the thalamus, is an important region of the brain. It receives the taste and smell impulses, coordinates messages from the autonomous nervous system, controls the heart rate, blood pressure, body temperature and peristalsis. It also forms an axis ..

Question: Links between organisms that show branching pattern of evolutionary relationships are shown by_____. 1. living fossils 2. comparative embryology 3. phylogenetic trees 4. two fossil layerss Answer: ..

Trophic Levels - Each link in a food chain is known as a trophic level. For example, in each food chain, plants always form the first trophic level. The plant eating animals called herbivores like insects, rodents, rabbits, deer, cattle, etc. form the second trophic level. The animals lik..

">Hydrocarbons and their major sub groups form a homologous series of organic compounds. As an illustrative example, the simplest of all hydrocarbons is methane whose molecular formula is CH 4 . This molecule consists of a single carbon atom linked to four hydrogen atoms by single covalen..

Question: What direct value does a forest have for man? Answer: Forests contribute to the economic development of our country by providing goods and services to the people and industry. They are intimately linked with our culture and civilization. Forests are useful to us for ..

". Modern Organic Chemistry comprises the chemistry of carbon compounds existing naturally, as well some that are manmade. Much of organic chemistry is devoted to studying compounds of carbon and hydrogen i.e., hydrocarbons and their derivatives. Carbon compounds are of a second type which can be p..