1. Which of the following are capable of self-pollination? Explain. (There can be more than one answer)
(A) A flower with a pistil, stamens, petals, and sepals
(B) A flower with stamens and petals
(C) A flower with a pistil, petals, and sepals?
2. Which of those flowers require another flower for pollination? Explain.
Please help! I've been struggling with these questions forever!?
#1 is A as it has both a Pistil (the female reproductive organ) and Stamen (male reproductive organ)
#2 is B and C both because they only have one of the required sex organs
Reply:pistil,stamens A
petals and sepals arent involved
A B C
A can be a normals flower
B and see just have one sex so need another for pollination
Reply:Petals and sepals are irrelevant to the question of self-pollination.
To self-pollinate a flower needs both pistil and stamens. Therefore A can self-pollinate. Stamens produce pollen, so a flower with stamens only (B) can polinate another flower but cannot be pollinated. Flower C, with a pistil only, needs pollen from another flower.
Monday, May 11, 2009
Biology Question!!?
The ______________ is the sticky surface at the top of the pistil; it traps and holds the pollen.
stigma
pistil
ovary
none of the above
Biology Question!!?
it should be stigma cause that is the upper part which is connected to a tube called style...
Reply:stigma. Pistil: stigma, style, ovary
Reply:i believe it is the stigma
:]
http://www.enchantedlearning.com/subject...
http://www.botany.uwc.ac.za/ecotree/flow...
Reply:stigma
running shoe reviews
stigma
pistil
ovary
none of the above
Biology Question!!?
it should be stigma cause that is the upper part which is connected to a tube called style...
Reply:stigma. Pistil: stigma, style, ovary
Reply:i believe it is the stigma
:]
http://www.enchantedlearning.com/subject...
http://www.botany.uwc.ac.za/ecotree/flow...
Reply:stigma
running shoe reviews
Female Plant Anatomy?
http://upload.wikimedia.org/wikipedia/co...
The caption for that image is: "Longitudinal section of female flower of squash showing ovary, ovules, pistil, and petals"
Could you please identify those parts? If you could actually write on the image that would be great!
Thank you
Female Plant Anatomy?
http://i31.tinypic.com/14lujuq.jpg
The caption for that image is: "Longitudinal section of female flower of squash showing ovary, ovules, pistil, and petals"
Could you please identify those parts? If you could actually write on the image that would be great!
Thank you
Female Plant Anatomy?
http://i31.tinypic.com/14lujuq.jpg
Wearing hats all day long?
Hi,
I wonder how some people wear these all day long? Things like these: http://www.thegreenhead.com/imgs/pistil-...
I am guessing these are special ones that lets air in, unlike the ones for cold? Doesn't it cause overheating and itching?
Also where can I find these kind of hats? Preferably ones that doesn't have stitch marks so it would look totally round on the top however you wear them.
Thanks.
Wearing hats all day long?
im sure those hats are hot to wear all day but ppl wear them cuz they think they look "cool"
Reply:maybe a lot fo people that these hats have shaved their head and dont have hair so it doesnt cause over heating or itching.
I wonder how some people wear these all day long? Things like these: http://www.thegreenhead.com/imgs/pistil-...
I am guessing these are special ones that lets air in, unlike the ones for cold? Doesn't it cause overheating and itching?
Also where can I find these kind of hats? Preferably ones that doesn't have stitch marks so it would look totally round on the top however you wear them.
Thanks.
Wearing hats all day long?
im sure those hats are hot to wear all day but ppl wear them cuz they think they look "cool"
Reply:maybe a lot fo people that these hats have shaved their head and dont have hair so it doesnt cause over heating or itching.
Help afew biology questions i need help with my book dosent explain it very well?
What is the most likely seed-dispersal mechanism for a walnut?
eaten by animals
catch in animal fur
wind
water
Where does the process of double fertilization occur in flowering plants?
in the pollen tube
in the stigma
in the central nucleus
in the ovule
The megaspore of a conifer will become ____
female gametophyte
male gametophyte
male sporophyte
female sporophyte
A flower that has sepals, petals, stamens, and pistils is called a _____ flower.
female
male
complete
incomplete
Help afew biology questions i need help with my book dosent explain it very well?
A walnut is most likely dispersed by animals eating it, because it is too heavy to be carried by the wind, healthy nuts sink in water, and they can't get caught in animals fur.
Double fertilization occurs inside the ovule.
The megaspore in a conifer becomes the female gametophyte.
A flower with sepals, petals, stamens, and pistils is called a complete flower because it has both male and female parts.
Reply:1. walnuts have a thick 'skin' around the nut, so this would have to be removed by an animal. Squirrels often bury nuts that they find and then forget them, which can result in germination and therefore seed dispersal.
2. In the ovule. One fertilizes the egg cell to form the embryo, the other fertilization gives rise to the endosperm.
3. I have a book entitled Plant Identification and Terminology that says the megaspore becomes the female gametophyte.
4. this would be a complete flower.
eaten by animals
catch in animal fur
wind
water
Where does the process of double fertilization occur in flowering plants?
in the pollen tube
in the stigma
in the central nucleus
in the ovule
The megaspore of a conifer will become ____
female gametophyte
male gametophyte
male sporophyte
female sporophyte
A flower that has sepals, petals, stamens, and pistils is called a _____ flower.
female
male
complete
incomplete
Help afew biology questions i need help with my book dosent explain it very well?
A walnut is most likely dispersed by animals eating it, because it is too heavy to be carried by the wind, healthy nuts sink in water, and they can't get caught in animals fur.
Double fertilization occurs inside the ovule.
The megaspore in a conifer becomes the female gametophyte.
A flower with sepals, petals, stamens, and pistils is called a complete flower because it has both male and female parts.
Reply:1. walnuts have a thick 'skin' around the nut, so this would have to be removed by an animal. Squirrels often bury nuts that they find and then forget them, which can result in germination and therefore seed dispersal.
2. In the ovule. One fertilizes the egg cell to form the embryo, the other fertilization gives rise to the endosperm.
3. I have a book entitled Plant Identification and Terminology that says the megaspore becomes the female gametophyte.
4. this would be a complete flower.
Biology. can you help?
17.A flower that has sepals, petals, stamens, and pistils is called a _____ flower.
A) female
B) male
C) complete
D) incomplete
19. In planning an experiment to investigate the effect of day/night length on flowering, it is best to use plants whose flowering pattern you know. Why?
Biology. can you help?
Complete, it has male and female parts.
You need to know where you are as a beginning to research effects. How would you know if a change was occurring?
Reply:i think its male
motorcycle riding boots
A) female
B) male
C) complete
D) incomplete
19. In planning an experiment to investigate the effect of day/night length on flowering, it is best to use plants whose flowering pattern you know. Why?
Biology. can you help?
Complete, it has male and female parts.
You need to know where you are as a beginning to research effects. How would you know if a change was occurring?
Reply:i think its male
motorcycle riding boots
Need help putting this in order please.?
A. Shoots Grows up
B. Pollen Lands on pistil
C. Flowers bloom
D. Sun Heats Ground
E. Ovule Produces seeds
F. Plant grows as it makes food from sunlight, soil, air, and water
G. Roots grow down
H. Pollen is carried from one flower to another
I. Leaves grow
J. Seeds fall or are carried to soil.
K. Buds form
L. Seed coat breaks open
M. Tube grows into ovule
Need help putting this in order please.?
H
B
M
E
J
D
L
G
K
A
I
C
F
B. Pollen Lands on pistil
C. Flowers bloom
D. Sun Heats Ground
E. Ovule Produces seeds
F. Plant grows as it makes food from sunlight, soil, air, and water
G. Roots grow down
H. Pollen is carried from one flower to another
I. Leaves grow
J. Seeds fall or are carried to soil.
K. Buds form
L. Seed coat breaks open
M. Tube grows into ovule
Need help putting this in order please.?
H
B
M
E
J
D
L
G
K
A
I
C
F
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