Ecosystems have to have two factors working together in order to function. what are those two factors?

a. trees and biotic factors

b. temperature and abiotic factors

c. biotic factors and living factors

d. biotic factors and abiotic factors

What amount of iron is recommended to be consumed per day by a 19-30 year old female?

Which reaction would prevail if both q and s were present in the cell in high concentrations?

Which of the following could be caused by depressed osteoblast activity? Low blood calcium levels and a lack of bone growth High blood calcium levels and excessive bone growth Low blood calcium levels and excessive bone growth High blood calcium

Which of the following is an example of recycling a renewable resource? A. riding a bike instead of driving a car B. turning food scraps into compost for plants C. turning off lights when you are not using them D.

What ecological problem does mariculture attempt to address? A. population B. Overfishing C. Ocean acidification D. Unemployment in coastal regions

Match the food item to its nutrient group. carbohydrates calcium fats proteins vitamins zinc

A restriction enzyme is that complete the sentence

Types of volcanic mountains in terms of shape, type of eruption, and the minerals that make up the volcano

Australopithecines were the ancestors of monkeys. A. True B. False

A mutation that causes a human have 11 toes is (neutral, harmful, or beneficial.)