Why do the physical characteristics of the overall population change?
Why do some animals die and some thrive?
In natural selections why do the animals die?
The physical characteristics of a population change over time due to the process of evolution. Evolution occurs through a combination of genetic variation and natural selection. Genetic variation refers to the differences in traits that exist within a population as a result of random mutations and genetic recombination during reproduction.
The survival and reproduction of individuals with certain traits, which are better suited to their environment, is known as natural selection. In each generation, individuals with advantageous traits have a higher chance of surviving and passing on their genes to the next generation. These advantageous traits can include physical features that help them find food, escape predators, or adapt to changes in their environment.
On the other hand, animals that are less well-adapted to their environment may not survive as well and may have fewer opportunities to reproduce. This can lead to the reduction or loss of certain traits in a population over time.
Why some animals die and others thrive in natural selection depends on their adaptation to the specific conditions of their environment. Those individuals with traits that give them an advantage in obtaining resources, avoiding predators, or finding mates are more likely to survive and reproduce, passing on their beneficial traits to future generations. Conversely, individuals with traits that are less advantageous may struggle to survive or reproduce, reducing their representation in the population over time.
It is important to note that natural selection does not purposely cause the death of certain animals. Rather, it is the differential survival and reproductive success of individuals with certain traits that leads to changes in a population over time.