Endangered is when group of species are at the edge of extinction.
Threatening is when group of species are at the risk of extinction in future.
The answer is glucose.
Hope this helps.
The feature of endocrine system that makes it distinctly different from the nervous system is that it uses hormones distributed through the bloodstream, option(A).
<h3>Why is endocrine system distinctly different from nervous system?</h3>
- The biggest difference between these two is that the endocrine system uses hormones produced by glands into the bloodstream, whereas the nervous system uses electrical impulses to send signals through neurons.
- The signal transmission of the nervous system is fast because neurons are interconnected, but the functions are short-lived when compared to endocrine system.
Therefore, option(A) is the correct answer.
To know about differences between the two systems, refer:
brainly.com/question/26146622
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I believe a simple change in DNA results in Mutation. A mutation is a random spontaneous changes that occur in the genetic make up of an organism ( in the DNA sequences). The mutation are either due to mistakes when DNA are being copied or as a result of environmental factors such as UV light and cigarette smokes among other mutagens. Mutations may be either gene mutation (permanent alteration in the DNA sequence that makes up a gene) or chromosomal mutation.
False they are found in tropical areas
