Answer:
Commensalism
Explanation:
Commensalism is when one organism benefits and the other doesn't benefit and is also not harmed. The tree is helping the orchid and the orchid isn't benefiting or harming the tree.
DNA:GCTAGCAG
RNA:CGAUCGUC therefore, C is the correct answer.
carbohydrate are the largest organic molecules
Smooth muscle.
Blood vessels contain smooth muscle in their walls. Cardiac muscle is heart muscle specifically. Skeletal muscle is muscle that forms the voluntary muscles.