<span>Endocrine glands can be found in A. all vertebrates. Vertebrates include all animals (with a spine) that exist on our planet, as well as some types of fish. Endocrine glands secrete various hormones inside the body itself, as opposed to the exocrine system. Some endocrine glands are ovaries, testes, pituitary gland, etc.</span>
A.air molicules touch the ground warming them up.
The difference between the "Question" and the "Hypothesis" is that a hypothesis is what you believe is the answer to the question based off of limited evidence while the question is just a regular question e.x. (for question) "Why is the water moving to the south?"
then using whatever evidence they will have they would do a hypothesis e.x. (for hypothesis) I believe the water is moving south due to the wind coming down from the north... or due to a current.
Solution:
nervous system, digestive system, and umbilical cord. A group of tissues in which small blood vessels from the mother and offspring intertwine but do not connect.
This is the required answer.
