From which sphere of Earth did this food originate?

A.
biosphere
B.
atmosphere
C.
troposphere
D.
hydrosphere
E.
geosphere

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

What type of plant is good for a bioassay and where can i buy it? i only have a month.

The diagram shows a chicken embryo and a human embryo