Friday, April 4, 2008

Origin of Life - Panspermia (1 of 3)

Origin of Life - Panspermia (2 of 3)

Origin of Life - Panspermia (3 of 3)

Aphids: Plant vampires?

Here are some pictures of aphids, like the ones we saw in the school garden plants.
Aphids are many times plant pests. What is a pest?
Ask in class.

http://cache.eb.com/eb/image?id=62561&rendTypeId=4

Aphids can have several colors. They can be green, red, black, white, etc. What color are the aphids we saw last time?

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Ladybugs eat aphids. They are able to track them down and hunt them. Here is a picture of a ladybug eating one of them.

http://www.agriculturestockphotos.com/images/070117185125_14_Spot_Lady_Beetle_Eating_Aphids_LG.jpg