Natural selection acts for the good of the species. The fittest organisms in a population are those that are strongest, healthiest, fastest, and/or largest. Natural selection is about survival of the very fittest individuals in a population. Natural selection produces organisms perfectly suited to their environments.
In these species, the populations fluctuate by having spikes due to the surface temperatures that increase as a consequence of global warming. It is a consequence of global warming in natural populations.
<h3>Global warming</h3>
Global warming refers to the constant increase in temperatures on Earth's surface due to human activities.
The human activities that lead to global warming include deforestation, burning fossil fuels, and farming livestock.
Global warming affects warm water species by the increase in water temperatures, thereby affecting also water quantity and water quality.
Learn more about global warming here:
brainly.com/question/3553382
Cancer kills by invading key organs (like the intestines, lungs, brain, liver, and kidneys) and interfering with body functions that are necessary to live. Untreated cancer commonly causes death. ... Even when it can't cure the cancer, treatment can often help people live longer.
Answer:
Explanation:
Duchenne muscular dystrophy acts as a X-linked recessive disease. Which means the gene sits on the X chromosome, and you need two bad copies to show disease (for females) and one bad copy (to show in males).
Now from our knowledge, we know males are XY and females are XX. Males have only one copy of the X chromosome from their mother and one copy of the Y chromosome from their father, thus if they get the mutated version of the gene that causes this disease, they will get the disease. However, if a female has a mutated version of gene on one of the X chromosome, the other X chromosome could have a normal gene and that normal gene would take over and produce a normal phenotype/function.
Since, boys only have one X chromosome, if they get the mutated gene they will get the disease, whereas females have two X chromosome (so even if one copy is bad and the other is good, the good version can take over, however boys don't have this) thus mostly male children are affected by this.
