I think it’s A but I’m not sure, if it’s wrong I’m sorry
Answer:
A
Explanation:
B and D have to do with plants
and C has nothing to do with cellular resporation.
Connective tissue is developed from embryonic mesoderm. It often consists of interlacing protein fibers (though there are some exceptions, such as blood) that form a framework for and connect, support, separate, and bind tissues and organs in the body. Examples include cartilage and bone.
Hope this helps!
Answer:
<u>I think the answer for this is C) lizard and snake</u>