PLEASE HELP, I only have one attempt

A symbiotic relationship in which one species benefits and the other is not harmed or helped -
A. Mutualism
B. Predation
C. Commensalism
D. Parasitism

Why is it important that human chromosomes have many origins of replication

Which situation is an example of not doing work? lifting a couch throwing a baseball running up stairs carrying a box

What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex