If the producers in a food chain have 2300 kilograms of energy, how much energy will the tertiary consumer have? Show your math

How many types of rock can form from the rock cycle

Scientists discover two populations of mice on either side of a major river. the two populations have almost identical genes but the mice from one side cannot breed with mice from the other. this is most likely because

Which of the following is caused by reproductive isolation within a species? a. a decrease in gene flow b. an increase in genetic flow c. a decrease in genetic drift d. an increase in gene flow