RNA polymerase: An enzyme that is responsible for making rna from a dna template.
Ribosome: a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells.
Promoter: A region of DNA that initiates transcription of a particular gene.
Regulator: Any organism that can maintain a constant internal environment largely independently of the external environment.
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Yes, it is true that evolution is a theory, which is a well substantiated explanation for observable facts.
Evolution is change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.
Different characteristics tend to exist within any given population as a result of mutation, genetic recombination and other sources of genetic variation.
Evolution occurs when evolutionary processes such as natural selection (including sexual selection) and genetic drift act on this variation, resulting in certain characteristics becoming more common or rare within a population.
The evolutionary pressures that determine whether a characteristic would be common or rare within a population constantly change, resulting in a change in heritable characteristics arising over successive generations. It is this process of evolution that has given rise to biodiversity at every level of biological organisation, including the levels of species, individual organisms and molecules.
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The natural blind spot is due to lack of receptors where the optic nerve and blood vessels leave the eye. There can also be artificial blind spots when something blocks light from reaching the photoreceptors, or when there is local adaptation of the retina as just after seeing a bright light
How is mitosis important for your body?
Mitosis is very important to the human body because it allows for the duplication of body cells. Human body cells constantly need to be created for many reasons such as that the body is constantly changing in size, and when someone gets hurt, mitosis is used to repair the damaged area whether it be internal or external.
The correct answer is marsupials.
<span>Marsupials are any members of the mammalian class Marsupialia and are endemic to Australasia and the Americas. The main characteristic common to these species is that most of the young are carried in a pouch because they give birth to relatively undeveloped young. Examples of marsupials include kangaroos, wallabies, koalas, possums, opossums, wombats, and Tasmanian devils. </span>
