What is the connective tissue that surrounds skeletal muscles and houses blood vessels, lymphatic vessels, and nerves?
is connective tissue that surrounds skeletal muscles and houses blood vessels, lymphatic vessels, and nerves.

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What is the name of the tool scientists use to identify a species? species key dichotomous key species marker dichotomous marker

What are hormones? a. they are minerals needed for proper bone formation. b. they are the parts of the body targeted by endocrine glands. c. they are substances needed for muscle and nerve activity. d. they are substances released by endocrine glands.

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?