Homology Lesson Slides and Notes

Homology and analogy slides and notes

native plant guide

Here's an effective guide to help you with your species identification
http://www.nwplants.com/business/catalog/fieldguidecolor2012.pdf

Dichotomous Key Practice 5 marks

Today, you will create a dichotomous key for a group of at least 10 or more PLANTS FROM THE SCHOOL GARDEN (2-1)  or everyday objects (2-3)   today for 5 marks.  Hand this in within the class. Create BOTH a spider key and a question key.  And an illustration of each object.

You are to create a dichotomous key for the plants you observe in central park.


EXAMPLES OF DICHOTOMOUS KEYS
Example of a key of just five items.  It shows a SPIDER KEY
and a question key:

Here are some examples of dichotomous keys on line.

Examples of Dichotomous keys:  web
What's That Tree?
Eek! Tree key
Common Trees of the Pacific Northwest


Example of a key that can be printed out
Tree identification key

Test on Angiospermae Reproduction November 7th Wednesday

There will be multiple choice as well as long answer on this test

The test is on the following material: 

1.  Angiospermae Reproduction in the textbook pages 267-274

a.  What is the purpose of a flower?
b.  label the parts of a flower, which parts are male, which are female?
c. What does the fertilized ovule turn into?
d.  How are angiosperms different from gymnosperms in their reproduction?
e. Explain how double fertilization happens
f. What are the many adaptations for seed dispersal?
g. Explain the advantages of pollen and some of the methods of pollen dispersal
h.  Fig 10.17   Explain how monocots are different from dicots.


Vocab words:  Know these definitions and how they relate to angiosperm reproduction: Be prepared to label these words on a diagram and also to explain how reproduction happens:

Angiosperm (means covered seed)
Co-evolution (with insects)
Flowers

FEMALE PARTS
Pistil, stigma, ovule
Petal,
embryo
Megaspore mother cell
 meiosis, mitosis, mitosis, meiosis, haploid n
egg,  spare nuclei, polar nuclei

MALE PARTS
Stamen, anther, filament
microspore mother cell
meiosis, mitosis, mitosis, meiosis, haploid n
n+n      pollen

FERTILIZATION
stigma, pollen
generative nucleus, tube nucleus
generative nucleus --> sperm nuclei
tube
double fertilization
2n embryo -->  new plant
3n endosperm  --> "baby food" for the new plant  --> cotyledon

PARTS OF SEED
seed coat
3n endosperm
2n embryo
it's a monocotyledon = corn, rice    or a dicotyledon= soybean,  peanut,  cashew

OVULE or RECEPTACLE eventually become FRUIT
a drupe or a berry or an accessory or an aggregate

Your colouring diagrams.  Be prepared to identify certain flowers and fruits according to these diagrams:

2. Your class notes on Angiosperm reproduction