What factors influence a region's photosynthetic productivity? nutrients and sunlight temperature and density sunlight and depth salinity and sunlight?

Which process of living things produces water that enters the water cycle

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one

If an organ has six haploid chromosomes,how many chromosomes are present. 6 12