the answer is a or d and im leaning too a so i suggest getting a second opinion sorry i cant help much more than that.
Answer:
Resistance of corn plants to insects.
Explanation:
Answer:A.Environmental issues are not always localized.
Explanation:Did on edge
Answer:Osteoblasts work in teams to build bone.
Explanation:They produce new bone called "osteoid" which is made of bone collagen and other protein. ... They regulate passage of calcium into and out of the bone, and they respond to hormones by making special proteins that activate the osteoclasts. OSTEOCYTES are cells inside the bone.
Cardiovascular muscle is the answer
