Problem 3. Given three numbers: a, b, c. If fourth number is 12 unit greater then Mean of the previous three numbers. What will be a Mean of these four
numbers.

What kinds of antigens are found on the rbcs of a person with a+ blood

Which statements about the two fossil images are correct? 1. cave bears are ancestors of plateosaurus. 2. plateosaurus were present on earth before ostracoderms. 3. ostracoderms were the first to die. 4. plateosaurus died after the ostracoderms. 5. cave bears are the oldest fossils.

In this food web, which group would increase in number if snakes were eliminated? a. producers b. decomposers c. primary consumers d. secondary consumers e. tertiary consumers