Tissue & tissue system of plant anatomy
sidraTissues The group of cells performing some collective function is called tissue. Tissues organize the body of plant for performing different function. Many types of tissues associate with each other…
What are the main parts/divisions of vertebrate (human) brain?
rubabThe brain of the developing embryo first becomes apparent as an enlargement of the anterior end of the neural tube. As the brain enlarges, it differentiates into three portions: the…
ASCOMYCOT-TX
abidaTYPE 1: PENICILLIUM (blue green mold) Occurrence Penicillium is a common mold. It is found on different substrata. It is most commonly found on citrus and other fruits. It is…
OBJECTIVES
saadiaOBJECTIVES Multiple Choice Questions MCQs 1. Number of speeies of Phylum Platyhelminthes are: (a) 10,000 (b) 15,000 (c) 20,000 (d) 25,000 2. Parenchyma is derived from: (a) Ectoderm (b) Mesoderm …
Give a brief account of the functional components of the vertebrate nervous system.
The extremely complex nervous system of vertebrates is divided into two main divisions - the central nervous system (CNS), composed of brain and spinal cord is site of information processing;…
SUBJECTIVE QUESTIONS
SUBJECTIVE QUESTIONS Give evolution of Platyhelminthes, Nemertea, and Gastrotricha. Give general characteristics of phylum Platyhelminthes. Describe classification of Phylum Platyhelminthes. Write note on body wall of turbellarians. Write note on…
TYPE: PYTHIUM
Occurrence It is common in soil water. Its various species live as saprophyte. Some of them live on decaying plant as parasites. The parasitic stage attacks the roots and the…
DEFINITIONS AND KEY POINTS FOR OBJECTIVES
DEFINITIONS AND KEY POINTS FOR OBJECTIVES TERMS DEFINITIONS Paedomorphosis Sexual maturity in a larval body form is called paedomorphosis. Zooids The two (or more) animals formed as a result of…
FURTHER PHYLOGENETIC CONSIDERATIONS
FURTHER PHYLOGENETIC CONSIDERATIONS There are different views about the evolution of platyhelminthes: Zoologists believe that the platyhelminthes body form is central to animal evolution. They believe that an ancestral flatworm…
PHYLUM GASTROTRICHA (Or. gastros, stomach i- trichos, hair)
PHYLUM GASTROTRICHA (Or. gastros, stomach i- trichos, hair) They have about live hundred free- living marine and freshwater species. They live in the space between bottom sediments. Their size is…