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convergent evolution is the development of the similar type of structures in distantly related organisms as a result of adapting to similar
compound leaf is the leaf in which the blade forms small leaflets compound leaves which have several small leaflets originating from the central axis
1 the level of organization intermediate between unicellular and the multicellular - organisms are composed of multiple cells but these fail to
cohesion-adhesion theory describes the properties of water which help move it through the plant cohesion is the property of water molecules to stick
circulatory system one of the eleven major body organ systems in animals carbon dioxide nutrients transports oxygen and waste products between the
cellulose is a polysaccharide which is composed of the unbranched chains of glucose the major structural carbohydrate of the plants insoluble in
cellular respiration is the transfer of energy from various molecules to produce atp takes place in the mitochondria of the eukaryotes the cytoplasm
cell theory is one of the four or five unifying concepts in the biology the cell theory states that all the living things are composed of at least
cell plate in the plants a membrane-bound space produced during the process of cytokinesis by the vesicles of the golgi apparatus the cell plate
cell-mediated immunity the immune reaction directed against the body cells which have been infected by viruses and bacteria and are controlled by
cells are the smallest structural units of the living matter and is capable of functioning
catastrophism once-popular belief which events in the history of earth had occurred in the past a sudden events and by processes different from those
calvin cycle the aka calvin-benson cycle or the carbon fixation is the series of biochemical enzyme-mediated reactions during which the atmospheric
blastocyst is the developmental stage of fertilized ovum by the time it is prepared to implant formed from morula and comprises of an internal cavity
beta decay is the type of radioactive decay in which the radioisotope emits a little negatively-charged and fast-moving particle from its nucleus
asteroid impacts the hypothesis which links certain mass extinction events with the impact of the comet or asteroid most particularly the mass
assortment is a method in which the meiosis produces new combinations of the genetic information the paternal and maternal chromosomes line up
angiosperms are the flowering plants they first appeared at least 110 million years ago from the unknown gymnosperm ancestor these flowering
amphibians is the class of terrestrial vertebrates which lay their eggs and mate in water but live on land as adults following the juvenile stage
amniocentesis is a way of prenatal testing in which the amniotic fluid is withdrawn from the uterus by the help of a needle the fluid and the
amino acid sequence is also known as the primary structure of a proteinpolypeptide the series of amino acids in a proteinpolypeptide controlled by
adenosine triphosphate atp is a general form in which the energy is stored in living systems comprises of a nucleotide with ribose sugar with
adp is lower energy form of atp containing two in spite of the three in atp phosphate groups attached to the adenine base and ribose
adaptive radiation the growth of a variety of species from the single ancestral form occurs when a new habitat becomes accessible to a population the
adaptation is the tendency of an organism to suit its environment one of the main points of charles darwins theory of evolution by the natural