Biology 2/28/13
Bell Ringer: Write the question and the correct answer.
1. A student examines a cell under the microscope and
determines that it is a eukaryote. Which structure
did the student identify in order to come to this
conclusion?
Place Cell
Crossword in the
A cell membrane
C cell wall
blue basket.
B nucleus
D ribosome
2. The various enzymes in our bodies are
A. Lipids
C. nucleotides
B. Carbohydrates D. proteins
Agenda
• Review Cell Structures
• Cell Differentiation
• Unit 3 Study Guide (due tomorrow)
• Quiz Friday “a” through “ase”
• Test: Friday Salmon sheets all of Organic Molecule and Cells
(cummulative)
• Monday Progress Report signatures due for quiz grade
• STAY IN YOUR SEAT UNTIL GIVEN PERMISSION TO PUSH
UNDER YOUR CHAIR.
AP Biology, 2/28/13
If the frequency of a particular allele that is present in
a small, isolated population of alpine plants
should change due to a landslide that leaves an
even smaller remnant of surviving plants, then
what has occurred?
A) a bottleneck
B) genetic drift
Place your Natural Selection (Brine
C) microevolution
Shrimp) Lab in the blue basket.
D) A and B only
E) A, B, and C
Agenda
• Notes Changes in Allele Frequencies and Ways
Natural Selection Acts on a Population
• Worksheet
• Essay Tomorrow
• Read ch 24
• Natural Selection with Teddy Grahams (due
Friday)