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AIM:

10/09/18 8 th I.S. AIM:. Do Now:. Think and share. You are on the fishing boat and your ship gets wrecked by inadvertent accident. A few hours later, you find yourself stranded on a deserted island. On this island, banana is the only food that you can eat, but there is only one tree left.

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AIM:

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  1. 10/09/18 8thI.S AIM: • Do Now:

  2. Think and share.. • You are on the fishing boat and your ship gets wrecked by inadvertent accident. A few hours later, you find yourself stranded on a deserted island. On this island, banana is the only food that you can eat, but there is only one tree left.

  3. Think and share.. • You must survive more than 10 days until the rescue team arrives. How will you survive with this single banana tree? How would you grow this banana tree for your survival? Make a Survival Plan with your group

  4. BANANA.. So who is your parent?

  5. Banana reproduce asexually. • What does that mean? • Hint: Think about biotic and abiotic

  6. Where it all began… You started as a cell smaller than a period at the end of a sentence…

  7. Getting from there to here… • Going from egg to baby…. the original fertilized egg (zygote) has to divide… and divide… and divide… and divide…

  8. Asexual Reproduction • Organism arise from a single parent. • Offspring are identical in EVERY way to their parent. = CLONE • = Parent and offspring have SAMEgenetic information.

  9. In Asexual Reproduction Genetic information of daughter (offspring) Genetic information of parent

  10. Types of asexual reproduction • One parent makes one daughter cell  results in two organisms • Used by one-celled (a single celled) organisms, like bacteria 1. Binary Fission

  11. 2. Budding • The offspring just pops out of the parent. results in two organisms • the outgrowth of a part of a cell or body • Example: hydra

  12. 3. Vegetative Propagation • New individuals are made without seeds or spores • The formation of miniaturized plant from specialized leaves or runners (part of plant) • Example: Strawberry, Banana

  13. 4. Fragmentation • Cut off body parts grow into new organisms . • Example: Planarian, Sea star

  14. Regeneration

  15. 5. Sporulation (spore formation) • reproduction involving specialized single cells coming from one parent

  16. Do noW

  17. Advantages • FASTER!  Able to produce large number of offspring quickly • Large colonies  higher chance of specie survival • No energy required to find a suitable mate

  18. Disadvantages • Offspring are identical so a single negative mutation can wipe out an entire population. • Many offspring close together may compete for food or resources • If environmental conditions change, may die out

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