When developing a business plan for a greenhouse, one of the things a grower will wish to do is calculate crop costs and crop yield estimates using what base unit? per acre

per square foot

per building

per square yard

it will increase due to the time span

answer; i believe the correct answer is (sporophyte);

b.have there own function.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.