When we talk of functional macromolecules (e.g.,proteins as enzymes,hormones,receptors,antibodies,etc.),towards what are they evolving?

The age of fossils was traditionally determined by radio-carbon dating and other methods involving radioactive elements found in the rocks. More precise methods currently used for determining the evolutionary time of different groups of organisms include:

$Archaeopteryx$,a transitional fossil between birds and reptiles,was discovered from the rocks of which of the following periods?

The hand of a man,the wing of a bat,and the flipper of a seal represent:

Describe the phenomenon of moths observed in industrial areas of England that supports evolution by natural selection.

Wings of bat, locust and pigeon are an example of