Wednesday, July 13, 2011
Gibberellin
Gibberellin are plant hormones that regulate growth and influence various stages of the developmental process. Gibberellin are found in young leaves, like the ones pictured from my yard, of plants.
Genetically Modified Organism
A genetically modified organism, or GMO, is an organism whose genetic material has been altered using genetic engineering. Tomatoes, such as these from my kitchen, are often genetically modified to appear shinier and become resistant to diseases.
Flower Ovary
A flower ovary is an ovule-bearing lower part of a pistal that ripens into fruit. This is a picture of a zucchini blossom from my yard. In the bottom middle of the blossom is the flower's ovary.
Frond
A frond is the leaf or leaflike part of a palm or fern. This is a picture of a fake palm tree found in my house. The green leaflike parts are its fronds.
Thursday, July 7, 2011
Fermentation
Fermentation is the chemical breakdown of a substance by bacteria, yeasts, or other microorganisms, typically involving effervescence and the giving off of heat. The sugar in grapes ferments to become alcohol like in the wine bottle from my kitchen.
Exoskeleton
An exoskeleton is a rigid external covering for the body in some invertebrate animals. Crustaceans, like the one that once lived in this conch shell found in my house, have exoskeletons.
Eukaryote
Eukaryotes are organisms that consist of a cell or cells in which the genetic material is in the form of chromosomes contained within a distinct nucleus. Yeast cells, like the ones found in my refrigerator, are eukaryotes.
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