Caused by many pathogens for example viruses, bacteria, parasites, toxins, and fungi
Answer:
I think it's more man-made possibly, but it might be both. You might want to see if someone says both, both I guess C maybe.
If you were to look at the age structure of a population of an endangered species and determine that there are mostly older individuals you could say that the population is declining and could be in danger of extinction.
<h3>What are
endangered species?</h3>
An organism that faces extinction is referred to as an endangered species. The two main factors that cause a species to become endangered are habitat loss and genetic diversity loss.
Because it prevents our native fish, plants, and other animals from going extinct, the Endangered Species Act is crucial. There is no turning back once they are gone they are lost forever.
Endangered species are those that are at risk of going extinct and must therefore be safeguarded and conserved. Extinct species are those that no longer exist on the planet.
It's Important to Save Endangered Species because:
- From antibiotics to anti-cancer medications, they are the sources of those substances.
- They are the earliest indication of significant environmental problems.
- They support the well-being of crops (and, indirectly, people).
- They help the economy grow.
To know more about Endangered Species refer to: brainly.com/question/10415903
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Mutualism because both animals benefit. The Elephant gets relived from the parasites that are on it and the bird gets food.
Nucleotide would be the answer
