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Cnidaria - Protozoa
The mature medusoid jellyfishes like Aurelia are the sexual stages. Sperms and eggs produced in the dissimilar (male and female) individuals ale released in water, which then fuse to form a zygote. The latter develops into a fixed polyploids scyphistoma that undergoes various transverse fission to produce ephyras by the process called Strobilation (see page lo), a type of asexual reproduction. Thus the sexual generation of the adult jellyfish is alternated along with an asexual generation i.e., scyphistoma. You would recall the alternation of generation is quite common among hydrozoans, in which the highly branching sedentary colonies such as those of Obelia are asexual generations. They give off medusae which are sexual generations. The medusae give rise to the colonies and vice versa, alternating with one another.
Introduction: the term, population is derived from lation word' populus' meaning 'people'. Population is a group organism of same in a particular is at a definite time period.
Explain Horizontal Full Mucoperiosteal Flaps - Endodontic Surgery a) Also called: Envelope flap, b) Only a Horizontal incision, without the vertical releasing incision
how the blood is circulated with the help of heart
Q. What are the symptoms of congestive cardiac failure? Congestive cardiac failure is a progressive form of cardiomyopathy. The most classical symptom is fluid imbalance due to
PLANNING FOR EVALUATION: The need for clearly defined objectives for the evaluation process, analysis of the need for it, systematic measures for accomplishing its purpose an
how do respiration take place in animal????
ME T AMORPHOSIS The differentiation results in the formation of larva / infant. The formation of adult from the larva / infant is called as metamorphosis. The metamorph
In addition, pregnancy or constipation may worsen GERD by increasing intra-abdominal pressure. Secondary causes of GERD include reflux caused by acid hypersecretory states, connec
Development of Heart in Amphibians The heart and the surrounding pericardial cavity build up from lateral mesoderm. After gastrulation, the mesodermal mantles carry on to gro
Aves has a nucleated rbc or not???
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