Answer: Natural selection is selection due to environmental conditions from random genetic mutations in a population. Among the variants in a population, some will be slightly better adapted to conditions and will eventually out-compete the rest of the population. Survival of the fittest actually means survival of the best adapted, or fittest for purpose, i.e. to survive and thrive.
Explanation: This phrase has caused much miunderstanding of the evolutionary process. ‘Fittest’ has been equated with biggest, or strongest or fastest, but this was a description originating in the nineteenth century, when it was understood quite differently.
Natural selection arises from genetic variation in a population. Jaques Monod, an esteemed scientist, described evolution as where chance and opportunity meet. Chance lies in the genome of a species, random mutations, and the resulting genetic variation in the population.
Opportunity lies in the environment. Environmental change creates opportunities for some, extinction for others. Opportunities can also be from exploiting new environmental niches.
Natural selection is the process by which some random genetic variation gives some of a population a competitive advantage. competition eventually results in one population out-competing all others in its niche. The end-result of competition in nature is monopoly.
But this process continues and further random mutations can result in another population becoming better adapted. That is the actual meaning of survival of the fittest: in modern terms we might say ‘fittest for purpose’, that is, the species orvpopulation best adapted to survive and thrive in that environment.
True
Explanation:
Photosynthesis is basically a simple and natural process. Photosynthesis is defined as the process whereby green plants manufacture their food in the presence of sunlight, carbon dioxide and water.
- The process of photosynthesis is vital to all life.
- Through photosynthesis light energy from the sun is transformed into chemical energy.
- The food manufactured by plants is consumed by organisms higher up in the trophic level.
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
photosynthesis equation.
- The product of photosynthesis is glucose and water.
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D. It provides buoyancy to a fish.
This air pocket is known as the swim bladder, and also called air bladder. This is a buoyancy organ possessed by most bony fish. The air bladder is located in the body cavity and is derived from an out pocketing of the digestive tube.
Answer:
Rounded it should be about 8.95
Explanation:
but in normality its 4, 8.9523
A substance used, or acted on, by another process or substance such as a reactant in an enzyme catalysed reaction.
