A biology student was given threeunlabeled jars of pond water from the same source, each containing a different type of mobile unicellular organism: euglena, ameba, and paramecium. The only information the student has is that the ameba and paramecium are both heterotrophs and the euglena can be...
I really need help with these biology questions:
A) The mass of some corn plants at the end of their growth period was 6 tons per acre. Most of this mass was produced from
1. water and organic compounds absorbed from the soil
2. minerals from the soil and oxygen from the air
3. minerals and...