1 / 8

Asexual and Sexual Reproduction

Asexual and Sexual Reproduction. Mrs. Anna Ward Ridge Road MS. Warm-Up ANSWER IN COMPLETE S ENTENCES. What is the result of reproduction? Why do organisms bother to reproduce? Why don't they just live forever?

eyal
Télécharger la présentation

Asexual and Sexual Reproduction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Asexual and Sexual Reproduction Mrs. Anna Ward Ridge Road MS

  2. Warm-Up ANSWER IN COMPLETE SENTENCES • What is the result of reproduction? • Why do organisms bother to reproduce? Why don't they just live forever? • What would eventually happen to a species if every member suddenly lost its ability to reproduce?

  3. Announcements • Tutoring • Science Fair Projects • Touch Base with Teachers…Tomorrow • Inherited and Acquired Traits Sheet

  4. Single Celled Organisms • http://www.teachersdomain.org/resource/tdc02.sci.life.stru.singlecell/ • What type of reproduction -- asexual or sexual -- do most single-celled organisms use? • What must a single-celled organism do before it can reproduce? • When a single-celled organism reproduces, what is the result? • In what ways, if any, does a single-celled organism differ from its parent?

  5. Sexual encounters of the Floral Kind • http://www.teachersdomain.org/resource/tdc02.sci.life.stru.floral/ • What type of reproduction -- asexual or sexual -- do most plants use? • What nonliving force do plants rely on most often for pollination? • What are some of the ways in which plants encourage or trick animals into carrying their pollen to other plants? • What proportion of each parent plant's genetic material does each offspring plant have?

  6. Asexual Reproducers • http://www.teachersdomain.org/resource/tdc02.sci.life.repro.asexual/ • What type of reproduction -- asexual or sexual -- do the whiptail lizards in the video use? • How many parents do whiptail lizards have? • How do young whiptail lizards differ from their parents, if at all? • How much of their parent's genetic material do whiptail lizards have?

  7. The Red Queen • http://www.teachersdomain.org/resource/tdc02.sci.life.evo.redqueen/ • What are the differences between the two species of minnows featured in the video? • Which species -- the asexual or the sexual reproducers -- tends to be more heavily parasitized by the worm that causes black-spot disease? • How are the sexual reproducers able to evolve defenses against parasites more quickly and more effectively than their asexual counterparts?

  8. The Mating Game • Read the Article and Answer these three questions in your science notebook.. • Why does sexual reproduction provide more genetic variation? • Why would sexual reproduction be an advantage to a species? • What would be a disadvantage of sexual reproduction?

More Related