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.
B.) leaking toxic waste landfill
C.) sewage treatment plant
D.) factory waste piped into a stream
A.) pesticide runoff from farm fields
Freshwater pollution can be defined as the contamination of inland water with substances that affect its natural use and it can be caused by chemicals, petroleum, fecal waste, sediments and fertilization. Thus, non-point pollution is the process where pollution result from many diffuse sources such as agricultural areas which drain into the wind-borne debris or rivers.
In an analogy between a factory and a cell, tRNA is like the 'delivery truck' that carries the necessary parts (amino acids) to the assembly line (ribosomes). It plays a crucial role in protein synthesis by translating the instructions from DNA and mRNA into a physical protein structure.
In the analogy between a factory and a cell, tRNA might be considered the 'delivery truck' that carries the necessary parts (amino acids) to the assembly line (ribosomes). DNA provides the instructions (genes), mRNA conveys these instructions to the ribosomes, and then tRNA transports the correct amino acids to the ribosomes based on the information in the mRNA. Each tRNA molecule contains an anticodon that matches a specific codon (set of three nucleotides) on the mRNA, allowing it to carry and add the corresponding amino acid to the growing polypeptide chain. This process of translation 'reads' the language of mRNA and translates it into the language of proteins. In other words, tRNA plays an essential role in the synthesis of proteins within a cell, facilitating the transfer of information from DNA and mRNA to a physical, functional protein structure.
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