Sexual and Asexual Reproduction The following slides and video clips involve cellular reproduction Unicellular organismsMulti-cellular organisms Amoeba Many Paramecium feeding on decaying matter. Amoeba with “issues” Bacteria

Asexual reproduction Sexual reproduction What do both of these terms mean? The production of new organisms from only one parent. When sex cells from two parents (plant or animal) combine to form a new organism.

Reproduction of Single and Multi-cellular organisms The Basics: Single-Celled vs. Multicellular ReproductionThe Basics: Single-Celled vs. Multicellular Reproduction (02:55)

Sexual Reproduction Sexual Reproduction (00:58)

Asexual Reproduction The Asexual Reproduction of the HydraThe Asexual Reproduction of the Hydra (02:36) An individual organism produces genetically identical offspring. (e.g., fission of bacteria, "budding off" of Hydra)

Reproduction on the Unicellular level Asexual ReproductionAsexual Reproduction (01:04)

Comparing both types of Reproduction Comparing Asexual and Sexual Reproduction in Different SpeciesComparing Asexual and Sexual Reproduction in Different Species (01:04)

Plants Reproduce in two ways: Asexual Reproduction Which produces a new plant Identical to the parent Sexual Reproduction. Which involves the fusion of an ovule and a pollen grain. to produce a new plant Usually two plants are involved The new plant contains characteristics from both parents. Sexual and Asexual Reproduction in Plants

Means that new plants are formed from only one parent. Examples of Asexual Reproduction are: Strawberry Runners. These are stems which grow from the base of strawberry plants. When they touch the ground they form new plants Daffodil Bulbs. These increase in number each year. Producing Clones of the original plant. Plant Cuttings. If you take a cutting from a Geranium Plant and place it in soil it may grow to produce a new Geranium Plant Examples of Asexual plants

Lets take a look at sexual reproduction with plant life. Watch the next video clip and we’ll discuss the difference between asexual and sexual reproduction with plants

In sexual reproduction, the genetic material from two parents combines to form offspring who are genetically distinct from their parents The Reproduction of Flowering PlantsThe Reproduction of Flowering Plants (01:20)

The video clip you just watched was an example of sexual reproduction occurring with a tomato plant. 1. Why is this considered sexual and not asexual reproduction? Explain. *Sexual reproduction requires genetic material from a male and female. *Asexual reproduction is the production of new organisms from only one parent. 2.Is the tomato plant considered a unicellular or multicellular organism? *The tomato plant is a multi-cellular organism

Bio review of Asexual and Sexual Reproduction

Time for a mini-quiz!!!! 1. An organism produces offspring without fertilization Directions: Label each sexual or asexual? 2. A vine (runner) from a strawberry plant produces another plant 3. A spider plant is split placed in water and develops new roots 4. A flower is pollinated and develops fruit 5. The offspring is identical to the parent 6. Two apple trees exchange genetic material (pollen from the male) 7. Bacteria reproduce this way 8. Produces a large number of offspring (improves its chances for survival) 9. Doesn’t need to find a mate 10. Each generation is different helping to insure survival in different environments 11. Humans, birds, fish, cats, lions…. reproduce asexual sexual