Do protozoans contain sexual or asexual reproduction
Do protozoans contain sexual or asexual reproduction?
Expert
In protozoans, reproduction is asexual or sexual. The most common form of sexual reproduction is binary division or scissiparity, in which the cell splits it by mitosis originating two daughter cells. Various species, such as the plasmodium, agent of malaria, reproduce asexually by schizogony (that is, multiple fission); in this form of reproduction the cell becomes multinucleated, usually within a host cell, and each nucleus is expelled out altogether with cytoplasm portions giving rise to latest protozoans.
The sexual reproduction in protozoans can take place by conjugation, with incorporation of genetic material from one cell into other, or by gametes which fecundate others and form zygotes. In plasmodium sexual reproduction takes place in the mosquito, the definitive host, and the zygote undergoes mitosis (or sporogony) making many sporozoites.
Define the term cephalization? How does lateral symmetry prefer cephalization?
What is the role of circulatory system in the functioning of the endocrine system?
Why the carbon monoxide is really toxic for the humans?
Why in bread and cake manufacture are alcoholic fermenting organisms employed and not lactic fermenting organisms?
Name all the colors (of the electromagnetic spectrum) which are absorbed by plants. What would happen to the photosynthesis if the green light waves that get to a vegetable were blocked?
Which organ liberates the female gamete under formation? How this release is triggered? Which organ collects the released gametes?
Write down the forces which are accountable for antigen-antibody reactions.
Name the five human digestive secretions? Which of them is the only one which does not include digestive enzymes? Answer: The human digestive secretions are as: gast
Give a brief explanation of genetic code.
How does photosensitivity in the cnidarians, annelids and worms differ from cephalopods, insects, and the vertebrates?
18,76,764
1934767 Asked
3,689
Active Tutors
1430687
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!