Which of the following characteristics are expected in the first animals to have colonized land?

I) They were probably herbivores.
II) Animals had four appendages.
III) Animals had the ability to resist dehydration.
IV) Animals had lobe-finned fishes as ancestors.
V) Invertebrates

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