The scientist who published 'On the Origin of Species' is: MCQ with Answer and Explanation

Explanation:
ELISA (enzyme-linked immunosorbent assay) uses enzyme-linked antibodies to detect and quantify specific antigens or antibodies in a sample. PCR amplifies DNA, Northern blotting detects RNA, Southern blotting DNA.

Explanation:
Bryophytes (mosses, liverworts, hornworts) are often called the 'amphibians of the plant kingdom' because, although they can live on land, they absolutely require water for the completion of their life cycle, specifically for the swimming of male gametes (antherozoids) to reach the female gamete (egg) during fertilization. Algae are mostly aquatic, while pteridophytes and gymnosperms are better adapted to terrestrial life.

Explanation:
Cellulase hydrolyzes cellulose into glucose. It is produced by certain bacteria, fungi, and protozoa, enabling them to digest plant material. Herbivores harbor these microbes in their gut. Humans lack cellulase.