Monday 1/13/14 LT: I can identify homologous and analogous structures

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Presentation transcript:

Monday 1/13/14 LT: I can identify homologous and analogous structures BR: How are traits passed down among living organisms? **when you are finished continue the next 5 vocab words on your list of Day 2

Genes A short segment of DNA that contains the instructions for a single trait

Tuesday 1/14 LT:I can identify homologous and analogous structures BR: How does variation occur in populations of species? What is a species? **1st 10 minutes of class answer bell ringer and study day one vocab

Tuesday 1/15 LT:I can identify homologous and analogous structures BR: what is homologous and analagous mean Put away chrome books, bellringer, and continue vocab if you still need something to do

Species A group of organisms that are closely related (evolve from a common ancestor) and can mate to produce fertile offspring

Look same; different function 2 choices Look same; different function OR Look different; same function

Human arm Bat wing Homologous (LSDF)

Seal flipper Human hand Homologous (LSDF)

Bat wing Bird wing Analogous (LDSF)

Shark Dolphin Analogous (LDSF)

Human arm Octopus tentacle Analogous (LDSF)

Whale fin Bat wing Homologous (LSDF)

Spider leg Human leg Analogous (LDSF)

Penguin wing Alligator arm Homologous (LSDF)

Fish fin Whale fin Analogous (LDSF)

Sugar glider wing Flying squirrel wing Analogous (LDSF)

Beaver’s front teeth Elephant tusks Analogous (LDSF)

Sea star arm Dog leg Analogous (LDSF)