1. TCAP Worksheet #2
Bio Unit

2. Who is Carolos Linnaeus?
A Swedish scientist who developed the modern taxonomy
Taxonomy is the science of describing, naming, and classifying organisms.
Classification is the actual division of the organisms.

3. 8 levels of classification
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species

4. Scientific Name Genus (Always capital letter)
Species (Lower case letter)
Written as Genus species
Felis domesticus is a common cat.

5. Dichotomous Key

6. Dichotomous Key, cont.

7. Branching Diagram What is the scientific name for a Burchell’s zebra?
Equus burchellii
What is the scientific name for a horse?
Equus caballus
What is the scientific name for a Grevy’s zebra?
Equus grevyi

8. Reproduction Asexual Sexual
Budding – A part of the parent organism pinches off and forms a new organism
Hydra
Fragmentation – A part of the organism breaks off to regenerate into a new organism
Sea Star
Internal Fertilization – the fertilization of an egg by sperm that occurs inside the body of a female
Mammals
External Fertilization – the union of sex cells outside the bodies of the parents
Fish

9. Reproduction Asexual Sexual
Advantage - Can produce many in a short amount of time
Advantage - Organisms are exactly alike
Disadvantage – organisms are exactly alike
Advantage – Diverse population
Advantage – Able to adapt to environment
Disadvantage – Cannot produce quickly

10. Mammal - Monotreme
Mammals that lay eggs
Echidnas
Platypuses

11. Mammal - Marsupial
Mammals that give birth to partially developed young
Kangaroos
Koalas
Wombats
Tasmanian devils

12. Mammal - Placental Live birth to developed young Humans Horses Bats
Rabbits

13. Behaviors Innate Learned
Behavior does not depend on learning or experience
Chewing
Swimming (for fish)
Fly (for insects)
Behavior that is learned from experience or observation
Speech
Writing
Ride a bike

14. Behaviors Survival Behaviors Seasonal Behaviors Finding Food
Marking Territory
Defensive Action
Courtship
Parenting
Migration
Slowing Down
Hibernation
Estivation
A Biological Clock
Lunch
Sleep
Cycles of Change
Toddler to Pre-Teen
Teenager to Young Adult

15. Natural Selection Overpopulation Genetic Variation within a Population
Struggle to Survive
Successful Reproduction

16. Genetic Bottlenecking
This occurs when a population is reduced to a few members.
Then the genetic variation decreases.
The population has a difficult time adapting to a changing environment.

17. Insecticide Resistance
This occurs when the insects can resist the insecticide.
Therefore, the next generation is not affected by the poison.

18. Biodiversity
This is every habitat has its own number and variety of organisms.
Bio = Life
Diverse = Many
If a habitat is damaged or destroyed, biodiversity is lost.

19. Biodiversity Helpful Harmful Conversation Reduce the amount of waste
Reuse the things you have (McKay’s Book Store)
Recycle the trash that you can (plastics, aluminum, etc.)
Chemicals
Pollution (Air, Water, Soil)
Garbage
Removing trees

20. End of Worksheet #2