What is true of increased levels of CO2 in the atmosphere? A. It's poisonous to plants.
B. It helps some plants grow better, while others experience less growth.
C. It reduces the amount of climate change.
D. It always helps plants grow.

The population of bacteria in a petri dish doubles every 40 seconds. the population of the bacteria is initially 400 organisms. what unit is most appropriate for the time at which the number of bacteria is 300? hour bacteria per hour second bacteria per second

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

What is the number of cells produced in mitosis