Why is meiosis/sexual reproduction important to the survival of a species?

1 answer:

3 0

Its important because they produce offspring. Without any offspring the species would slowly die off and become extinct.

You might be interested in

Evolutionary theory contends that genetic ___________ is necessary and beneficial for humanity when there is an environmental ch

Anni [7]

Answer:

variation

Explanation:

Genetic variation is what makes us all unique as a result of subtle changes in our DNA. The Theory of Evolution is a process in which organisms change over time as a result of adapting to their environment. Charles Darwin came up with the term Survival of the fittest, in any environment plants and animals from the same species show natural variation in their physical characteristics, like neck lengths in giraffes. Darwin suggested that the plants and animals best suited to the environment will survive and pass on their characteristics to their offspring. Over time, the characteristics of the surviving members of the species will become predominant.

Example: Peppered moth

In London in the 1800's, 98% of peppered moths had light colored bodies and only 2% were dark. The light moths were the same color as the trees so they could easily hide from hungry birds and not get eaten. The dark moths however were easy to see and were eaten. Then came the factories and smoke of the industrial evolution and many trees turned black with soot and suddenly the dark moths were able to survive better as they now looked like the trees and the light colored moths were easier to spot and eat. By 1895 the dark peppered moths made up 95% of the population and the light colored moths only 5%. This is an example of natural selection, because of the gene that makes the moths dark, it allowed them to flourish when the environment changed, they adapted, reproduced and survived.

8 0

3 years ago

The actual niche the organism is able to occupy in the presence of competitors is called its:_____________.

ladessa [460]

Answer:

B) realized niche

Explanation:

The ecological niche refers to all the environmental factors that influence the growth, survival, and reproduction of species. These factors also include the interaction between species. The term ecological niche refers to the fundamental niche or the realized niche.

The fundamental niche refers only to factors or physical conditions under which a species can live and survive in the absence of any interaction with other species.

The realized niche refers to the restricted conditions in which a species can live and survive as a result of environmental conditions and the interaction with other species.

When an inferior competitor is excluded by the superior competitor, this is known as competitive exclusion. This occurs when there is not habitat differentiation, and both species can not share the same niche. In this case, the effective or realized niche of the dominant species completely occupies the fundamental niche of the inferior competitor.

In the exposed example the organism is able to occupy a niche in the presence of competitors, which is the clue for us to classify this niche as a realized niche. The organism needs to interact in a certain way with its competitors. There is an interaction between taxonomic groups, or between individuals.

6 0

3 years ago

Create a Punnett Square to illustrate the probability of a black rabbit if a white male were mated with a black female. Use W fo

Slav-nsk [51]

There you go!! The Pheno type is 100% white male and Genotype is 100% Wb