What four characteristics of an aquatic environment might make photosynthesis or life processes difficult for aquatic plants? List each characteristic, and describe how it can impact photosynthesis and the plant as a whole. (8 points)

Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.

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