A scientist notices that the level of toxic chemicals in an algae plant is 400 ppm. A consumer called zooplankton eat the algae. What level of toxic chemicals
would the scientist discover in the zooplankton?
4 ppm
400 ppm
4,000 ppm
40,000 ppm

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

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

Moving down the ramp from 6 meters to