Chapter 17, Problem 34A

Summary Introduction

To write:

About eukaryotic evolution.

Introduction:

Eukaryotic cells those cells that contain a nucleus and organelles, and are encased by a plasma layer. Organisms having eukaryotic cells includes protozoa, plants, parasite and animals. These organism are assembled into the group of Eukaryota

Explanation of Solution

The Eukarya is subdivided in to three following kingdoms:

• Kingdom of Fungi :- They are unicellular or multicellular organism having eukaryotic cell type. Cell wall is there in the cells but aren’t organized in tissues.They obtain their nutrition from absorption and do not carry photosynthesis. For example- Club fungi, yeasts, molds, and sac fungi.
• Kingdom of Plantae:- This kingdom consist of multicellular organisms which are basically eukaryotic .The cells present here are well organized and include cell walls .They get their nutrition from absorption and photosynthesis. For example:- Mosses, conifers, ferns and flowering plants.
• Kingdom of Animal :-This kingdom consist of multicellular organisms which are basically eukaryotic .The cells present here are well organized but lacks cell walls .Photosynthesis is not carried by them. They get their nutrition from ingestion.For example :- worms, sponges, vertebrates and insects.