scientists calculated the net primary productivity at two different forest sites. both forests have the same gross primary productivity. forest a has a net primary productivity of 1,650kcal/m2/year, and forest b has a net primary productivity of 1,110kcal/m2/year.

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.

What is an example of a college admissions test? -state test -cat -act -personality test

Abacterium was found to contain a sequence of atcgggatcct in its genome. a few generations later, the sequence was found to be atcatcct. what type of mutation caused this change in the bacteria? a. duplication b. insertion c. inversion d. translocation