Answer:
Protists are classified into three categories on the basis of their mode nutrition. They are as under.
1) Algae : Algae is made up of single cell having true nucleus. They are found in those places where water is present. They make their own food like plants.
2) Protozoa : Protozoa is also made of one cell and have true nucleus. They feed on another animals.
3) Fungus like protists : It is a type of protists which feeds on dead bodies of plants and animals.
1) Protists are organisms which are made up of single cell.
2) Protists are eukaryotes i. e. having true nucleus.
3) Protist have some characteristics of animals, plants and fungus.
Fern spore germinates into prothallus.
Explanation:
Ferns are members of phylum pteridophyta, the vascular cryptogams.
These are first land plants which are known to have a distinct conducting system of xylem and phloem.
They reproduce by forming spores that germinates into a heart shaped gametophyte.
The gametophyte of the fern is called prothallus.
The heart shaped gametophyte has root like structure called rhizoids.
These rhizoids anchor the gametophyte to the substratum.
The number of oxygen is more in carbohydrates than in fats, usually. For instance, the chemical structure of glucose is C6H12O6 compared with oleic acid which is C18H34O2. Carbohydrates and lipids are biomolecules that contribute to cellular and biological processes. These are important because these are the source of energy, replication and reproduction among cells.
Answer:
Faltworms rely on difussion to transport oxygen and nutrients to their internal tissue and to get rid of carbon dioxide and other wastes from their body . Flateworms have no heart ,blood, blood vessels, grills , or other respiratory systems. Flatworms have flame cells. Flame cells are specialized cells that remove and purify excess water from the body.
