Oxygen Release in Photosynthesis Protocol
1) Measuring the uptake of CO2 2) Measuring the production of O2 3) Measuring the production of carbohydrates 4) Measuring the increase in dry mass
Class 3. Demospongiae (Gr., dermos= frame+ spongos= sponge)
Subclass I. Tetractinellida Order 1. Myxospongida Order 2. Carnosa Order 3. Choristida Subclass II. Monaxonida Order 1. Hadromerina Order 2. Halichondrina Order 3. Poecilosclerina Order 4. Haplosclerida Subclass III. Keratosa
Class 2. Hexactinellida (Gr., hex=six + actin=ray) or Hyalospongiae (Gr., hyalos=glass+ spongos= sponge)
Order 1. Hexasterophora Order 2. Amphidiscophora
Class 1. Calcarea (L., calx=lime) or Calcispongiae (L., calcis= lime+ spongia= sponge)
Order 1. Homocoela (=Asconosa) Order 2. Heterocoela (=Syconosa)
Phylum Porifera Classification
The phylum includes about 5,000 species of sponges, grouped into 3 classes depending mainly upon the types of skeleton found in them. The classification here is based on Storer and Usinger (1971) which appears to be a modification from Hyman’s classification.
Phylum Porifera Characteristics
Porifera Definition
The Porifera may be defined as an asymmetrical or radially symmetrical multicellular organism with a cellular grade of an organization without well- definite tissues and organs; exclusively aquatic; mostly marine, sedentary, solitary or conical animals with body perforated by pores,…
Examples of Adsorption
Adsorption of viruses Adsorption chromatography
Examples of Absorption
Skin absorption Intestinal absorption Absorption refrigerators
Key differences (Absorption vs Adsorption)
Basis for comparison Absorption Adsorption Definition Absorption is the process of taking or assimilating substances into a surface like a cell or across the tissues by the process of diffusion or osmosis. Adsorption is the process of adhesion of molecules…