Botany

oh, n' why do many leaves change color in fall??

2007-10-21 07:13:05 · 5 answers · asked by alizeeer2005 1

In the countryside, near where I live, the farmer has put huge polythene tarpaulins round the edge of the fields, where are there are trees. All the fallen leaves have landed on the polythene. Why would anyone do this???

2007-10-21 05:38:27 · 1 answers · asked by lovelylexie 4

A few people who know me well tell me I should do research. I've thought yes, it suits my thorough personality best and but look how long it will take (another bachelors in science and then onto grad school in plant research or whatever)! I am in nursing. In my dream I was splicing and injecting a gene via bacteria vector into a plant.(I don't know if I got all the facts right). My dream was black and white. I am highly interested in cosmetic applications or pharma applications, though.

Is this dream indicating that I am taking this idea seriously (at least more seriously than before)--as a real possibility?

2007-10-21 04:14:36 · 1 answers · asked by Pansy 4

In snapdragons the inheritance of a lower color of size of leaves are examples of incomplete dominance. When red-flowered plants are crossed with white ones, all the flowers are pink. Similarly, when plants with broad leaves are crossed with plants of narrow leaves, the offspring have intermediate leaves. Cross a homozygous red-flowered, broad-leaved plant with a homozygous white-flowered narrow leaved plant. What kind of offspring are produced in the F1 generation? Now cross two of these plants and find the phenotype ration of the offspring. Explain the relationship of the 9:3:3:1 ration to the one you obtained.

Plz help..this is due monday and im a freshman in H bio and my teacher hates me and i seriously asked for help multiple times but my teach acts like i'm not even there

2007-10-20 16:26:59 · 2 answers · asked by Anonymous

Question: A beech tree has small, green-coloured flowers. Explainwhy it is unlikely that beech lowers are pllinate by insects. Suggest the most likely mothod of pollination. (I know its by wind but i have no idea why insects don't pollinate it =S THANKS!! <3)

2007-10-20 13:37:28 · 4 answers · asked by Anonymous

i need to learn!!!

2007-10-20 12:00:38 · 1 answers · asked by hot emo kid 1

2007-10-20 05:16:15 · 2 answers · asked by damigurl05 1

I know that it will absorb the nitrates but what about the rest of the stuff?

2007-10-20 02:38:18 · 8 answers · asked by mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm 1

2007-10-19 22:02:55 · 3 answers · asked by chillpill_milo 1

2007-10-19 16:36:54 · 2 answers · asked by Anonymous

I'm american international high school student.
I don't khow how do the light-dependent reactions of photosyn
thesis relate to the Calvin cycle?
please help me.

2007-10-19 15:55:50 · 3 answers · asked by hitman182769 1

2007-10-19 13:02:44 · 4 answers · asked by hatguy 2

I am looking for medium orange, darker burgandy, and ivory flowers that are considered in season in the fall. They would be used for wedding bouquets. I'm not a fan of roses. The more unknown and unusual, the better.
A florist will be consulted when I have a better idea of what I want.

2007-10-19 10:49:21 · 2 answers · asked by Amanda G 2

2007-10-19 09:36:25 · 2 answers · asked by lisa 2

If a pine tree forest can change the environment to make it more suitable for a maple forest than a pine forest, how does it do this?

2007-10-19 08:31:37 · 2 answers · asked by lisa 2

2007-10-19 07:55:18 · 14 answers · asked by Someone 1

i bought a ficus nightingale and i am wondering what to do with it. it has six trunks each easily seperated into 6 seperated trees. any suggestions.

2007-10-19 05:30:47 · 1 answers · asked by ? 2

that has lost most or all of its ability to photosynthesize and has taken to stealing energy from certain tree roots (a saprophyte i.e.). The Indian Pipes (all species and varieties of which are classified as endangered) but are not too uncommon in the moister old growth areas of the Appalachian region. Now here's the tough one? What common flowering shrub that is ubiquitous in the Eastern USA, and relatives also grow in the Himalayas as well, is its closest relative? And what common Eastern tree renowned for its crimson or blood red leaves in the fall is also in the same family as the humble little Indian Pipes?

2007-10-19 05:25:21 · 2 answers · asked by Anonymous

2007-10-19 04:39:10 · 1 answers · asked by ac_jim 1

2007-10-18 23:29:55 · 22 answers · asked by Anonymous

This has become something of an argument with my friends and I,we regularly pass through this park and the grass is literally covered in these white leaves.And we've all said they're from a different tree,so can someone please settle this once and for all and tell me what tree produces these leaves?
I believe the leaves were a bright green with a silver underside but now they've fallen they've turned completely white on both sides.
http://img100.imageshack.us/my.php?image=leafdscn1886mp7.jpg

2007-10-18 22:03:29 · 1 answers · asked by Anonymous

I have several large, thick lichen growing on my maple trees. I have no idea what kind they are but they're larger than dinner plates and a good 2" or more thick and somewhat cupped in shape. They're just beautiful. I've dried smaller ones, but these are so big. Is there any way to preserve them? Thank You!

2007-10-18 18:13:33 · 3 answers · asked by Starr 2

2007-10-18 17:55:00 · 4 answers · asked by Anonymous

2007-10-18 17:15:55 · 4 answers · asked by sms_singathiya 1

2007-10-18 15:13:50 · 3 answers · asked by Anonymous

2007-10-18 15:10:45 · 2 answers · asked by Anonymous

2007-10-18 14:59:40 · 1 answers · asked by hasty 1

2007-10-18 14:58:51 · 3 answers · asked by hasty 1

2007-10-18 12:51:01 · 3 answers · asked by Dave W 1

2007-10-18 12:48:15 · 4 answers · asked by jontae_collins@sbcglobal.net 2