Activities+about+the+origin+of+life+and+evolution

.. ** Activities Unit 5 ** Ad**aptation** is the accumulation of inherited changes that organisms and populations undergo in order to adapt to variations in their environment, thus enabling them to survive.
 * Evolution ** . The theory by which species develop from others due to changes which they pass down to their descendents.
 * Protocell. ** Hollow, spherical lipid membrane which contains proteins, nucleic acids and other organic molecules.
 * Primeval soup. ** Name used by Oparin to describe the pools and seas of the planet in which the first biomolecules gradually accumulated.
 * Genetic recombination ** . The exchange of genetic material between homologous chromosomes during meiosis.
 * Mutation. ** Alteration of a gene, occurring randomly or as the result of an external cause.
 * Dominant allele ** is the allele that is expressed and which mask recessive alleles.
 * Phenotype ** is the expression of the genotype influenced by the environment.
 * Biodiversity ** is the number and variety of organisms that live or have lived as the result of evolution.
 * Omnivore ** is an animal that can live on a varied diet of plants and other animals.