Answer: The correct answer is- b) Mosquitoes.
R- selected species are those species that can survive in unstable, unpredictable environmental conditions and produce large number of small size offspring. These offspring have low survival rate ( short life span) and do not have any parental care.
These species grow very rapidly and attain reproductive maturity at early stage in their lives.
Example of R- selected species- Insects ( such as mosquitoes), rats.
On the other hand, a) , c), and d) are K selected species. They survive under stable environmental conditions and produce large size offspring with very few number. They have long life span and experience parental care
Mosquitoes are an R-related species.
Further Explanation:
The fitness of a phenotype determines whether it gets naturally selected or not. For a condition where the environment of each year changes and the adaptability of the phenotypes are different for a different environment, the oscillating selection might occur in which different phenotypes are favored at different times and different environmental conditions.
Fitness can be attained by two different approaches, namely:
How much a system can invest in one approach at the cost of others depends on the environment. This type of selection is known as R-K selection. In K-selection, the organism matures slowly and has a long life span. In R-selection, the organism produces many copies of progeny in an unstable environment. Mosquito, mice, and rabbits are an example of R-species.
Some features of R-species are:
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Ecology
Keywords:
Environment, year, adaptability, selected, fitness, stability, multiplication, fast, small, weak, short life-span, intelligent, feature, organism, depend.
