Botany

2007-04-22 14:41:20 · 4 answers · asked by Charmin and alarmin 1

I would like a list of: Vegetables and Fruits found in Africa. Not just cultivated ones, ones that just grow naturally as well. Spices etc. would be nice as well. I am very interested in this but have yet to find a very good source of information. =) Any help at all would be wonderful.

2007-04-22 13:30:58 · 5 answers · asked by Mana 1

Scientists have meausured the circumfrence of trees at 2 A.M. and at 2 P.M. If they collect measurements when the ground has adequate moisture and the days are sunny and dry, they find that hte circumfrence (and therefore the diameter) of the tree trunk is smaller at 2 P.M. than at 2 A.M. From your knowledge of the mechanisms of water transport, suggest your reasons for this decrease in circumfrence.

2007-04-22 08:10:35 · 5 answers · asked by kitty 1

2007-04-22 03:39:33 · 4 answers · asked by Anonymous

What kind of physical environment would you need to maintain appropriate phototropic responses among plants??

2007-04-21 16:43:01 · 1 answers · asked by Mike R 2

a. chromatids are not involved in mitosis
b. tetrads rarely form during mitosis
c. a cell undergoing mitosis does not have homologous chromosomes
d.there is no prophase during mitosis

which is it?

2007-04-21 16:29:34 · 4 answers · asked by The REBELution! 3

2007-04-21 15:23:17 · 3 answers · asked by maryannerighi 1

2007-04-21 11:26:16 · 6 answers · asked by Anonymous

2007-04-21 10:23:13 · 4 answers · asked by katelyngrace 1

for my science project I have to grow a plant and I wanted to know how I can grow a plant from a black eyed pea.

2007-04-21 09:39:05 · 6 answers · asked by lidoswtxval 3

temperature wise and sunlight

2007-04-21 08:15:31 · 5 answers · asked by ♥ 3

2007-04-21 07:32:55 · 25 answers · asked by browybrowbrow 1

2007-04-21 06:56:42 · 6 answers · asked by vwdrvr00 1

2007-04-21 05:54:11 · 4 answers · asked by diva 1

2007-04-21 05:33:52 · 3 answers · asked by xxmisperfect127xx 2

wat does G(5-infinity) & EPI 3-8
mean in malvaceae floral formulae

2007-04-21 05:22:46 · 3 answers · asked by embryoma 1

2007-04-21 04:31:03 · 3 answers · asked by kyle s 1

2007-04-21 00:42:56 · 9 answers · asked by mae c 1

Teh chloroplasts of the Cryptomonads (photosynthetic protist) is very complex with 4 outer membranes. Between the second and the third membrane is a reduced nucleus (called a nucleomorph) with 3 linear chromosomes. Insidde the innermost membrane is also some DNA, though less. Please describe a likely scenario of the event(s) that occured to give rise to this type of Cholorplast.

2007-04-20 16:36:41 · 1 answers · asked by Anthropomorphic 2

I salivate madly at the sight of dead invertebrates. I know I need help, but what sort of help?

2007-04-20 14:12:23 · 3 answers · asked by Anonymous

how does cellular reproduction compare with photosynthesis

2007-04-20 10:06:22 · 3 answers · asked by iwant2findout 2

2007-04-20 05:14:14 · 6 answers · asked by Part Time Cynic 7

a few multiple choice bio questions.. PLEASE HELP.. if u can explain as well, that'd be great

1) the following factors may sometimes play a role in the movement of sap through xylem. Which one depends upon the direct expenditure of ATP by the plant?
a) capillarity of water within the xylem
b) evaporation of water from leaves
c) cohesion among water molecules
d) concetration of ions in the symplast
e) bulk flow of water in the root apoplast

2) in which plant tissue would the pressure component of water potential often be negative?
a) leaf mesophyll
b)root epidermis
c)root cortex
d) stem xylem
e) stem phloem

3) in which of the followin is a vascular cabium most likely to be found?
a) herbaceous dicots only
b) woody dicots only
c) a and b

4) all of the following are advantages of seeds except
a) choice of germination location
b) dispersal
c) dormancy
d) a nutrient supply for the embryo

2007-04-19 18:39:11 · 3 answers · asked by Anonymous

A transiration
B condensation
C transportation
D precipitation

2007-04-19 17:08:57 · 6 answers · asked by ♥jξm♥ ღஜƸ̵̡Ӝ̵̨̄Ʒஜღ 2

which light makes flowers grow the best ? incandescent light or sunlight. also what other lights are there that are available at my house

2007-04-19 15:41:56 · 10 answers · asked by Anonymous

2007-04-19 13:31:36 · 4 answers · asked by Anonymous

2007-04-19 09:50:57 · 14 answers · asked by sunny 3

I was growing beans, cucumbers and tomatoes in dixie cups and pots in my kitchen. When they started to attract ants I moved the pots and dixie cups outside. Due to my heavy school and work schedule I don't always get a chance to water them. I'm lucky if I get to water them every other day. Because I live in California the water sometimes dries up very quickly by the afternoon. When I went to go water them this morning some of my tomatoes appeared to wilt. I had watered them 2 days earlier. How long can plants last without water?

2007-04-19 06:20:01 · 5 answers · asked by christigmc 5

2007-04-18 22:54:53 · 2 answers · asked by Anonymous

why are pollen grains so numerous?

what are several factors that allow for pollination?

what comes first pollination or fertalization?

if you were a plant breeder, how would you insure cross-pollination and prevent self- pollination?

are peas derived from ovaries or ovules? Explain

please help with as many questions as possible !

thanks!

2007-04-18 15:32:27 · 2 answers · asked by maggiegirl 1