<span>Melanin is what makes the
color of the eyes, skin, and hair dark. The absence of melanin makes those body
parts lighter in color. Human traits are
controlled but monogenic traits, only one gene such as the eye base color
whether brown or blue.</span>
A bat wing is homologous to a whale's: FLIPPER
Genes are a set of instructions that determine what the organism is like, its appearance, how it survives, and how it behaves in its environment.
Answer:
Biotechnology is a new branch of science
Explanation:
The begining of biotechnology was somewhere around the 1920s i think so it is not old
Answer:
Due to mixing of particles present in the upper layer of limestone with sandstone during deposition.
Explanation:
The parent layer was limestone layer which is older than sandstone layer. This sandstone layer spreads on the limestone layer because of wind. The wind moves these sandstone from other region and their deposition occurs on the limestone layer. During deposition of sandstone, some particles of limestone which are present at the surface mixes with the sandstone so that's why in sandstone layer, small and weathered pieces of limestone are present.