Five-year-old trevor is emotionally disturbed and refuses to communicate with anyone. to get him to speak, his teacher initially gives him candy for any utterance, then only for a clearly spoken word, and finally only for a complete sentence. the teacher is usingthe method ofa) secondary reinforcement. b) delayed reinforcement. c) spontaneous recovery. d) shaping

The model illustrates a process by which a substance is taken up by a cell

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content