Vertebrates, and a few invertebrates, have a closed circulatory system. Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness. In this type of system, blood is pumped by a heart through vessels, and does not normally fill body cavities.
the correct answer is B, it is safer.
The pituitary gland is a major endocrine gland. A pea-sized body attached to the base of the brain, the pituitary is important in controlling growth and development and the functioning of the other endocrine glands. I hope this helps. If not visit the website bellow.
<span>http://www.medicinenet.com/script/main/art.asp?articlekey=4915</span>
Answer:
If anything make sure you tell her/him/them that you're there for here no matter what. Ask if she/he/they are comfortable to talk about what's making her/him/them so upset, if she/he/them opens up listen carefully and make sure to give a constructive but kind response. If she/he/them doesn't feel comfortable don't try to force her/him/them. Tell her/him/them that you know she's/he's/they're strong even though she/he/they may not feel like it, and tell her/him/them you're always there for her/him/them.
Explanation:
Ur answer is d bc that’s makes it uncertain and difficult to accomplish