WebSpirogyra species can reproduce both sexually and asexually. Asexual , or vegetative, reproduction occurs by simple fragmentation of the filaments. Sexual reproduction occurs by a process known as conjugation , in which cells of two filaments lying side by side are … zygote, fertilized egg cell that results from the union of a female gamete (egg, or …
Class 7 Science Chapter 12 MCQ - Tiwari Academy
WebAnswer is (a) they reproduce asexually Explanation: Amoeba reproduce by binary fission, Spirogyra reproduce by fragmentation, yeast reproduce by budding. 8. In Spirogyra, asexual reproduction takes place by (a) breaking up of filaments into smaller bits (b) division of a cell into two cells (c) division of a cell into many cells WebSep 25, 2024 · Through a process called "fission," planarians can reproduce asexually by simply tearing themselves into two pieces -- a head and a tail -- which then go on to form two new worms within about a ... how many meter in 1 foot
MCQ Questions for Class 7 Science Chapter 12 Reproduction in …
WebAmoeba reproduce by binary fission, Spirogyra reproduce by fragmentation, yeast reproduce by budding. 8. In Spirogyra, asexual reproduction takes place by (a) breaking up of filaments into smaller bits (b) division of a cell into two cells (c) division of a cell into many cells (d) formation of young cells from older cells. Soln: Answer is (a ... WebOne of the more striking facts pertaining to acidification is the increase in benthic filamentous green Zygnemataceae algae, particularly Zygogonium, Mougeotia, … WebJul 28, 2024 · 1. Bryophyllum reproduces or multiplies in number by the method called vegetative propagation. 2. Leaves of Bryophyllum plays a major role in vegetative … how many meter in a mile