What is the porosity of the gravel sample? (the sediment volume for each sample is 400ml.)

a.

23.75%

b.

28.75%

c.

55.75%

d.

81.75%

b. 28.75

Wich organism obtains its energy from dead or decaying matter

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind