What is the purpose for assigning two names to classify organisms?

Weights of golden retriever dogs are normally distributed. samples of weights of golden retriever dogs, each of size nequals15, are randomly collected and the sample means are found. is it correct to conclude that the sample means cannot be treated as being from a normal distribution because the sample size is too small? explain.

Environmental differences within ecosystems are generally caused by

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles