PLS HELP ASAP What are the two factors that determine the boundaries of a biome? Question 1 options:

A. temperature

B. latitude

C. precipitation

D. altitude

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.

How many states were there when the constitution was written?

Transcendentalist walt whitman captured the spirit of young america by creating