A helper T cell is found bound to an antigen-presenting cell and has released cytokines into the bloodstream. Indicate whether the statement is true or false. The helper T cell is bound to the antigens on an invading bacterial cell. false true

The answer is letter c

The answer to this would be choice b (diplod)

Although i don't know what is the simulated system, starfish are predators that eat mostly  microalgae,  snails, sponges, bivalves, mussels and other small marine animals. removing starfish from any system would definitely increase this animals that they prey.

The answer is nucleic acid