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transmit – v. to cause a virus of disease to be given to others
offspring – n. the child of a person or animal
potential – n. qualities or abilities that may develop and permit someone or something to succeed
predator – n. animal that hunts and kills other animals for food
ecosystem – n. a biological community of interacting organisms and their physical environment
species – n. a group of animals or plants that are similar and can produce young animals or plants
beforehand – adv. before a particular time or event
option – n. a choice
