The answer is
D. another natural disturbance
simple mules are a mix of hourse and donky and are born infertle they cant BREED.
Antlers are generally only found on male deer in other species of deer. Females with higher-than-normal testosterone levels, on the other hand, can grow antlers.
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Why Do Deer Grow Antlers?</h3>
Antlers are grown by male deer to lure female deer for mating. Females will be shown a display as the antlers are developing during mating season, with each male attempting to become the most dominating.
Deer utilize their antlers to protect themselves from predators and other deer. When deer attack each other, their antlers might lock together, forcing the deer to starve to death.
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Answer:
An index fossil is also known as guide fossils or indicator fossil. They are fossils used to determine and identify geologic periods.
The main characteristics of an index fossil include :
1.It must be distinctive.
2.It must be widespread.
3. It must be abundant
4. It must be limited in geologic time.
Due to trends and studies of most fossil-bearing rocks being formed in the ocean, the major index fossils are mostly marine animal or plant organisms.
The 1st Law of Thermodynamics is what you are looking for
Hope this helped :)