Base Pair - Any of the pairs of nucleotides connecting the complementary strands of a molecule of DNA or RNA and consisting of a purine linked to a pyrimidine by hydrogen bonds. The base pairs are adenine-thymine and guanine-cytosine in DNA, and adenine-uracil and guanine-cytosine in RNA or in hybrid DNA-RNA pairing. Base pairs may be thought of as the rungs of the DNA ladder.
Binomial - (Life Sciences & Allied Applications / Biology) a system for naming plants and animals by means of two Latin names: the first indicating the genus and the second the species to which the organism belongs, as inPanthera leo (the lion)
Biodiversity - (Life Sciences & Allied Applications / Biology) the existence of a wide variety of plant and animal species in their natural environments, which is the aim of conservationists concerned about the indiscriminate destruction of rainforests and other habitats
Biogenetic Law - The theory that the stages in an organism's embryonic development and differentiation correspond to the stages of evolutionary development characteristic of the species. Also called Haeckel's law, recapitulation theory.
Biological Evolution - Change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.
Biotic Components - are the living things that shape an ecosystem. A 'biotic factor' is any living component that affects another organism, including animals that consume the organism in question, and the living food that the organism consumes. Each biotic factor needs energy to do work and food for proper growth. Biotic factors include human influence.
Bipedalism - - the bodily attribute of being bipedal; having two feet.
Binomial - (Life Sciences & Allied Applications / Biology) a system for naming plants and animals by means of two Latin names: the first indicating the genus and the second the species to which the organism belongs, as inPanthera leo (the lion)
Biodiversity - (Life Sciences & Allied Applications / Biology) the existence of a wide variety of plant and animal species in their natural environments, which is the aim of conservationists concerned about the indiscriminate destruction of rainforests and other habitats
Biogenetic Law - The theory that the stages in an organism's embryonic development and differentiation correspond to the stages of evolutionary development characteristic of the species. Also called Haeckel's law, recapitulation theory.
Biological Evolution - Change in the genetic composition of a population during successive generations, as a result of natural selection acting on the genetic variation among individuals, and resulting in the development of new species.
Biotic Components - are the living things that shape an ecosystem. A 'biotic factor' is any living component that affects another organism, including animals that consume the organism in question, and the living food that the organism consumes. Each biotic factor needs energy to do work and food for proper growth. Biotic factors include human influence.
Bipedalism - - the bodily attribute of being bipedal; having two feet.