Is this a scientific model? Use complete sentences to explain why or why not.

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

What organ is the first to receive nutrients that have been absorbed from the digestive tract?