reproduction
DESCRIPTION
Reproduction. Asexual and Sexual. A ll Living Things……. Are made of cells, Require energy, G row and develop, R espond to their surroundings (stimulus/response) Display organization Maintain homeostasis Adapt and evolve over time REPRODUCE!!!. Thinking Points. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/1.jpg)
1/9/14
• Pick a partner or work by yourself• Grab a chart and one set of organisms. from
the front table. ONE PER GROUP• Begin reading about your organisms and fill in
you chart. • You will have until 10 mins after the bell rings
to complete this task.
![Page 2: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/2.jpg)
Reproduction
Asexual and Sexual
![Page 3: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/3.jpg)
All Living Things……
1. Are made of cells,2. Require energy, 3. Grow and develop,4. Respond to their surroundings (stimulus/response)5. Display organization6. Maintain homeostasis7. Adapt and evolve over time8. REPRODUCE
![Page 4: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/4.jpg)
Thinking Points
• 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?
![Page 5: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/5.jpg)
Reproduction=making babies!
![Page 6: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/6.jpg)
Two Types of Reproduction
1. Asexual reproduction - production of genetically identical offspring from a single parent.
2. Sexual reproduction - production of genetically different offspring from two parents.
![Page 7: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/7.jpg)
Review:What does this word “genetic” mean anyway?
DNA
DNA is an instruction manual for an organism
![Page 8: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/8.jpg)
Asexual Reproduction5 Types You Need to Know
1. Binary Fission2. Vegetative reproduction3. Budding4. Spore formation5. Regeneration
BRAIN POP!
![Page 9: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/9.jpg)
Binary Fission
Prokaryotic cells divide into 2 genetically identical cells
![Page 10: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/10.jpg)
Vegetative Reproduction
Production of a new plant from a portion of another plant, such as a stem or branch. Also called vegetative propagation.
![Page 11: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/11.jpg)
Budding
Budding is the process of a parent organism pinching off to form a new organism genetically identical to the parent.
![Page 12: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/12.jpg)
Spore Formation
Spores are released from parent to produce genetically identical offspring. (Bacteria, plants, algae, and fungi.)
![Page 13: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/13.jpg)
Regeneration
The ability to replace or regrow missing body parts
![Page 14: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/14.jpg)
Is a form of Sexual Reproduction
![Page 15: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/15.jpg)
![Page 16: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/16.jpg)
Disadvantages
• Asexual – no genetic variation (less genetic diversity among the species) so less chance for survival if environment should change
• Sexual – – takes longer to make offspring, – requires two parents, – can’t reproduce as often in a single lifetime
![Page 17: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/17.jpg)
Advantages
• Asexual– Requires only one parent– Organisms can reproduce rapidly– Requires less metabolic energy– No special sex organs necessary– Low genetic variability allows a higher success rate
AS LONG AS THE ENVIRONMENT DOESN’T CHANGE.
![Page 18: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/18.jpg)
Advantages
• Sexual – – Because DNA from two parents is combined, lots
of genetic diversity– Organisms reproduce less frequently– Genetic variation allows better chance for survival
if environmental conditions should change– Genetic variation can lead to resistance to certain
types of disease– Genetic variation enables evolution within a
population
![Page 19: Reproduction](https://reader036.vdocument.in/reader036/viewer/2022081517/568161ca550346895dd1af8a/html5/thumbnails/19.jpg)
Who does it?
• Asexual – organisms from the archaebacteria, eubacteria, and Protista kingdoms, some fungi, some plants, and some simple animals
• Sexual – most animals and plants, some protists, some fungi, humans, some prokaryotes (conjugation).