The right answer is smelly garbage.
Infestation is the penetration into the body of a parasite whose nature is not microbial.
smelly garbage is not synonymous of infestation, because the olfactory system only detected smelly metabolites of these microorganisms. This does not necessarily mean that the microorganism has managed to penetrate the body.
By cons other proposals are signs and tools for infestation (torn packaging with food leaking out, dead insect bodysuits, feathers, and fur).
X: Ozone layer destruction
Y: Mass extinction
Look at the clutch size. There seems to be no patterns between the amount of clutch size and the survival rate because if you have a low survival rate, you can have either a high or low clutch size based on the info that is given<span />
Answer:
Explanation:
It is beneficial to know if mutation is the cause of a particular ailment or an individual carries a mutated gene because it gives a clear direction on what the problem is an how it can be resolve of possible.
We have the sex cell and somatic cells, some mutation affects sex cells, while some somatic cells. If a mysterious affect sex cell there is every possibility of it being inherited by the offspring hence adequate knowledge about a mutant gene being in the body can help guide against some further re-occurence.
Negative effect is fear, it creates fear in an individual who has it.
It can lead to depression when an individual becomes traumatize due to his state.
The Biblical flood would have caused the death of all life on earth, except for those on the arc, which would have resulted in fossils that are now found. Fossils being found in different layers of rocks could have been a result of how they settled as the waters receded.