chitin
Chitin is the most abundant amino polysaccharide polymer occurring in nature, and is the building material that gives strength to the exoskeletons of crustaceans, insects,
Biology
concentration gradient
A concentration gradient occurs in a solution or gas when the concentration of particles is higher in one area than in another.
Cross-pollination
Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same
Deforestation
Deforestation, in simple terms, means the felling and clearing of forest cover or tree plantations to accommodate agricultural, industrial or urban use.
digestion
Digestion is the breakdown of large insoluble food compounds into small water-soluble components so that they can be absorbed into the blood plasma. In certain
diploid
A diploid cell has two complete sets of chromosomes. Most cells in humans are diploid, comprising 23 chromosome pairs, so 46 chromosomes in total. This
ecology
Ecology is the study of organisms and how they interact with the environment around them. An ecologist studies the relationship between living things and their
endocrine glands
Endocrine glands are ductless glands of the endocrine system that secrete their products, hormones, directly into the blood. The major glands of the endocrine system