Some produce a large number of small-sized offspring (oysters, pelagic fishes) while others produce a small number of large-sized offspring (birds, mammals). So, which is desirable for maximising fitness?
Answers
The species producing a small number of large sized offspring are more fittest than the species producing a large number of small sized offspring because the former doesn't have a threat of loss of offspring as compared to later .
Answer:
Some produce a large number of small-sized offspring (oysters, pelagic fishes) while others produce a small number of large-sized offspring (birds, mammals), both organisms are evolved to maximize their fitness in the habitat they reside.
Explanation:
In the habitat in which they reside, populations develop to maximize their reproductive fitness, often known as Darwinian fitness.
Organisms evolve toward the most efficient reproductive strategy under a certain set of selection pressures. Some species only reproduce once in their lives, while others reproduce multiple times. Some produce a high number of little offspring, whereas others produce a limited number of bigger-sized offspring.
Ecologists believe that organisms' life-history features have developed in response to the abiotic and biotic restrictions imposed by the habitat in which they exist.
Thus, whether the organism produces a large number of small-sized offspring or a small number of large-sized offspring, they are evolved by maximizing its fitness in the habitat in which they reside.