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Seed

seed

(Science: biology plant biology) A propagating organ formed in the sexual reproductive cycle of gymnosperms and angiosperms, consisting of a protective coat enclosing an embryo and food reserves. A small hard fruit.A mature fertilized plant ovule consisting of an embryo and its food source and having a protective coat or testa.The thick white fluid containing spermatozoa that is ejaculated by the male genital tract.The structure found in a fertilised ovule of a plant. Generally, this will consist of two main components, the [[embryo and [[endosperm. The endosperm acts as a food store for the embryo which over time, will grow from this rich food supply enabling it to do so.


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green wavelength in plant photosynthesis

... don't believe me. @dummy92 The plants will actually grow in green light for a while, and they will probably grow faster. Here's why: when a plant seed originally germinates, it doesn't need light to grow, at it is growing off its stored nutrients in the seed. The plant seed is originally in the ...

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by MrMistery
Sat Sep 05, 2009 5:44 am
 
Forum: Botany Discussion
Topic: green wavelength in plant photosynthesis
Replies: 3
Views: 64

Re:

... is from a natural situation is beak size in birds. In particular, Darwin's finches in the Galapagos islands. During a period of drought, small-seed plants began to dominate the flora and there was selective pressure for reduced beak size in the finches living there who depended on those seeds. ...

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by robsabba
Thu Aug 27, 2009 2:48 pm
 
Forum: Evolution
Topic: Natural selection is proven wrong
Replies: 177
Views: 16276

Pitfalls of Evolutionary Psychology: Exaptation

... after sex. The behavior of non-monogamy is probably much more related to the feeling of sex feeling good than the unconscious need to spread one's seed. If you listen to the thoughts of evolutionary psychologists, almost always they claim that there are unconscious instinctual urges that relate ...

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by jeremyo
Mon Aug 17, 2009 12:12 am
 
Forum: Evolution
Topic: Pitfalls of Evolutionary Psychology: Exaptation
Replies: 3
Views: 133

publish my report

When you say scientific magazine, do you mean a magazine such as Seed or Scientific American? Or a journal, such as Nature or Cell?

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by jyaron
Sat Aug 08, 2009 5:40 am
 
Forum: General Discussion
Topic: publish my report
Replies: 6
Views: 105

Ideas on seeds for a experiment for schools across Europe

My advice would be to research Mendel's experiments on peas. He looked at many traits such as floristic characteristics, seed pods, etc. Reproducing his experiments in one form or another would probably be very useful as an object lesson.

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by AstusAleator
Sun Jul 12, 2009 5:54 am
 
Forum: Botany Discussion
Topic: Ideas on seeds for a experiment for schools across Europe
Replies: 1
Views: 181
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