Natural Selection is the process by which the most adapted, or fittest, species survive and the least adapted, or unfit, species do not survive. An example of Natural Selection is if there are two species of birds that eat the same thing, but one of the species has a beak that makes it harder to eat the food, naturally the species that has the beak fit to eat that food will survive. The species that is not fit to eat that food will either adapt or will be unable to survive. Evolution is a species adapting to the enviornment over a period of time. There is microevolution and macroevolution.
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A supermassive black hole is a perfectly ordinary black hole that happens to be really, really big.
Answer: CO2 was the big driver of global warming at the end of the Ice Age." ... Comparing the global set of temperature records with the levels of CO2 in the ancient air bubbles trapped in ice cores reveals that global average temperatures started to rise at least a century after CO2 levels began to creep up
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The pathogen is Pasteurella multicida.
Explanation:
Pastuerella multicida is a gram negative, non motile bacteria that is penicillin sensitive and belongs to the family pasteurellaceae. It is a common cause infection from dogs and cats bites.
Gram staining is a method use to distinguish and classify bacterial species into large groups which are either gram positive or gram negative.
Gram negative bacteria are bacteria that do not retain the crystal violet stain used in their gram staining while
Gram positive bacteria are bacteria that retain the crystal violet stain by their thick peptidoglycan cell wall found in them.
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An individual whose genotype is heterozygous cannot be for the recessive
Explanation:There are two possible genotypes either homozygous dominant or heterozygous dominant. For a charecter there can be two gene .One is recessive and other one is dominant. In presence of the dominant gene the recessive gene of the same character cannot express . IF recessive gene is homozygous then only it will express .Therefore for the individual it is heterozygous for the dominant