Razzaq Archive
Which of the following is NOT a part of the central nervous system? a) Brain b) Spinal cord c) Peripheral nerves d) Retina Which of the following is NOT a function of the nervous system? a) Sensory processing b) Motor …
MARSILEA (Water fern) Division : Pteridophyta Class : Pteropsida Order : Polypodiales Family : Polypodiaceae Genus : Polypodium DISTRIBUTION: Marsilea is world-wide in distribution. Most abundantly found in tropical parts of world. The species of Marsilea …
Division : Chlorophyta Class : Chlorophyceae Order : Conjugates Sub-order : Zygnemoideae Family : Zygnemaceae Genus : Spirogyra OCCURRENCE Spirogyra (Gr. Speira, a coil, Gr. Gyros, twisted) is a large genus. It is found throughout the world in fresh …
Kingdom : Plantae Division : Chlorophyta Class : Chlorophyceae Order : Volvocales Family : Chlamydomonadaceae Genus : Chlamydomonas (Gr. Chlamys, mantle; monas, single organism) OCCURRENCE: It is widely distributed unicellular algae. It is found in …
IMPORTANCE OF ALGAE Beneficial Aspects Algae have following beneficial effects: Source of food and fodder: i) Some algae contain high amounts of minerals, proteins and oils so are used as food for human beings e.g., Ulva, Spirogyra , …
REPRODUCTION Algae reproduce vegetatively, asexually and sexually VEGETATIVE REPRODUCTION A part is detached from the plant body and develop into new plant. Vegetative reproduction may takes place by one of the following methods. Fragmentation: parent plant is divided into …
VEGETATIVE STRUCTURE/ THALLUS ORAGANIZATION Thalli of algae show a range of organization starting from unicellular form to highly organized multicellular habit. The algal thalli are grouped into the following, based on their organization; 1. Unicellular: Composed of single cells, they …
Algae are mostly aquatic organisms. They are present in both fresh and marine water. Algae may also be: I. Epiphytes: These algae grow on the surface of other plants. (Ulothric) II. Endophytes: These algae live inside the other plants. (Ulvella …
Watch the lecture for MCQS and Basic concepts Q.1 Which of the following is made up of bones and cartilage? 2008 A) Endoskeleton B) Exoskeleton C) Hydrostatic Skeleton D) none of theses Q.2 The collagen fibers of bone are …
