A dry soil sample has a volume of 500 mL. After 400 mL of water are added to the soil, the soil becomes saturated with 150 mL of surface water left on top. What is the porosity of the soil?
O 30%
O 38%
O 50%
O 63%

Photosynthesis uses co2 and cellular respiration produces co2. we call the point when the two processes are in balance--when there is no net production of co2--the compensation point. how might you limit one of the processes in order to achieve a compensation point?

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated