An inability to adapt to its environment would likely be the most common.
They risk dying out, or they move to another environment
They become extinct.
it becomes extinct
This is likely the word "extinct", which is applied to past species of organisms that have died out. Another possible word would be "instinct" (an automatic response, as in animals).
The offspring would have a 50% chance of being heterozygous and showing the dominant trait and a 50% chance of being homozygous for the recessive trait.
A sense of humor
Two fruit flies having the same red eye color is an example of two organisms that are homozygous for the eye color trait. If the fruit flies had different eye colors, then they would be heterozygous for the trait.
Organisms in the same scientific order would have the most similar traits.
Why would they be extinct? We are dependent on their survival, but they aren't dependent on ours (due to the fact that they can photosynthesise and respire) so technically we are more likely to become extinct then they are and If they were extinct, then we would also be so... people to ask stupid questions would (probably... hopefully) also be dead.
The allele would not be passed on to further generations, as the organism cannot reproduce. There would be a smaller population of that organism who's genetic code does not contain the allele for that particular trait.
because a food source can become extinct and if the other organisms only food source becomes extinct the species would starve and become extinct and other species will become extinct as well.
Heterozygous.