_______ type of Bacteria that has acidic polysaccharides.

_______ type of Bacteria that has acidic polysaccharides.

Answer: Gram- positive

Scientists know that the first living organisms were _________. However, it is not known whether these organisms were ________ or ________

Scientists know that the first living organisms were _________. However, it is not known whether these organisms were ________ or ________

Answer: prokaryotic, autotrophic, heterotrophic

What features are possessed by all complex multicellular organisms?

What features are possessed by all complex multicellular organisms?

1. They begin from a single cell which produces daughter cells.
2. They have different types of specialized cells.
3. They are formed by cell division and adhesion.

Source of new genetic variation are:

Source of new genetic variation are:

- mutations within genes
- gene duplication
- horizontal gene transfer