Scribe! 1/31

Hi! So today in class we started off class by

checking in our "Picture This!" assignment and also our UP page 26. Along with that, we got a new stamp sheet and received two rainbow stamps.

Then we started talking about Darwin Vs. Lamarck. We determined that these are some very important facts to know, and will help with your understanding on the different theories of Darwin and Lamarck!

Darwin

- There is a struggle for existence

among organisms.

-There is a tendency toward

overproduction in nature.

-Conducted most of his research

in the Galapagos Islands.

vs.

Lamarck

-Two mice whose tails had been cut

off should produce offspring with no

tails. (inheritance of acquired characteristics).

-All organisms have an INBORN URGE

to better themselves and become more

fit for their environments; thus birds

developed wings because of this urge.

We answered these questions^ on page 13 in the UP packet; for more practice go there and answer more of those questions! Also, for more help on Lamarck/Darwin, a great recourse is the textbook, and also look through this powerpoint for more review!

Evolution part I

View more presentations from Jmason1

After our short review on Lamarck and Darwin, we took a quiz on a reading we did the other day. This quiz did not count, but could be very helpful to study off of. The quiz was on:

Homologous Structures

Comparative Embryology

Molecular Biology

Analogous Structures

Vestigial Structures

^^^^^^^Example of homologous structures

^^^^^^^Example of comparative embryology

^^^^^^^Example of analogous structures

^^^^^^^Example of vestigial structures

Homologous Structures- As similar organisms adapt to different environments, the function of their appendages changed.

Comparative Embryology- Examining the embryos of organisms; Organisims with similar embryos are thought to be more closely related.

Molecular Biology- Comparison of the amino acid sequences

Analogous Structures- Different organisms began living in similar environments, their appendages involved to preform the same function.

Vestigial Structures- Structures which remain in organisms but have no obvious function.

Tonight's homework is to:

• Finish lab 38

The next scribe is...........Kasia!