The Amount of energy in every level decreases by
about 90% as you go up
the pyramid.

The energy is measured in -Kilocalories (Kcal) or Joules (J)
1 Kcal =4184 Joules (J)

Approximately what percent of energy is passed onto the next trophic level

HELP

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