What describes the term parasitism?

Pls quickly! which of the following is true about the behavior of an organism? a. the behavior of an organism is influenced by both its heredity and it’s environment. b. the behavior of an organism is influenced only by the treats it inherits from its parents. c. the behavior of an organism is influenced only by the environment in which it lives in. d. the behavior of an organism is not influenced by either it’s heredity or its environment.

Which of the following produces carbon dioxide? a. plants b. animals c. decomposers d. all of the above

Tom wants to conduct a scientific study but he needs to finish by the end of the school year. what practical way could tom work around this limitation and be successful in his study?