Answer:
Brown eyed genotype: Aa (eterofzygous) or AA (homofzygous)
The genotypes derived from the cross are: AA, Aa, Aa, aa
The phenotypes are: 3 with brown eyes and 1 with blue eyes (aa)
Nowadays we have much more modernized farming. There are combines, tractors and other machines. Back then they used hundreds of workers and now 1 machine gets all that done in half the time. Try googling it for more info.
Answer:
Schleiden, Schwann, and Virchow are the 3 major contributors to the cell theory.
I would say C because there are many more types of plants than animals. Plants convert light energy yes.
Answer: A. To break down food into nutrients that can be circulated around the body. :)
