Complete question:
Several structures work together to allow flowering plants to reproduce. The diagram shows a typical flower.
Which answer correctly identifies the function of each structure or group of structures in the reproduction of the plant?
X- pollen production
Y- pollen transfer
Z- production of eggs
X- attraction of pollinators
Y- production of male sex cells
Z- egg production
X- production of eggs
Y- pollen transfer
Z- pollen production
X- production of eggs
Y- pollen production
Z- pollen transfer
Answer:
X- attraction of pollinators
Y- production of male sex cells
Z- egg production
Explanation:
Flowers are reproductive structures in charge of sexual reproduction through the production of seeds.
<u>Z</u><u>, Feminine reproductive structures:</u>
- The central structure is known as a carpel, also recognized as the pistil.
- The base of the carpel forms the<u> ovary</u>, in which the eggs are produced and where the zygote develops.
- The opposite extreme of the carpel is the<u> stigma</u>, in the superior part. The stigma is a sticky surface where the pollen grains get attached.
- The ovary and the stigma are connected by a filament named <u>style</u>.
<u>Y,</u><u> Masculine reproductive structures</u>:
- The pollen grains, or male sex cells, are produced in the stamens.
- The stamen has an<u> anther</u> where the pollen is produced, and a <u>filament</u> that provides support.
When mature, pollen grains are driven to the stigma of the same flower or other flowers of the species, where they stick. Once in the stigma, the pollen grains move to the ovary, where they meet the egg and fertilize. The zygote develops in the ovary.
<u>X,</u><u> External non-reproductive structures:</u>
Flowers also have external structures known as <u>petals</u> and sepals. These structures are modified leaves whose principal function is to protect the flower´s fertile parts and attract pollinators. Petals characterize as having many different colors that make the flower more attractive to insects and some animals. When they visit a flower searching for their recompense, the flower´s pollen grains transfer to the insect´s body. The insect transports the pollen to the next visited flower, leaving it in the stigma of the second flower.
Answer:
Which two details from the short story excerpt BEST support the correct answer above? A) "As if that could have anything to do with --with--My, wouldn't they laugh?" (section 1) "But you know juries when it comes to women. If B) there was some definite thing--something to show." (section 2) "No, Mrs. Peters doesn't need supervising. For that matter, a sheriff's wife is married to the law." (section 3) D) Then Martha Hale's eyes pointed the way to the basket in which was hidden the thing that would make certain the conviction of the other woman-- (section 4) Martha Hale snatched the box from the sheriff's wife, and got it in the pocket of her big coat just as the sheriff and the county attorney came back into the kitchen (section 5) E)
Answer:
- (b)
- (c)
- (a)
- (b)
- (d)
- (d)
Explanation:
1.
I saw the similarity that there are 7 periods in a periodic table and 7 days in a week.
2.
The periodic table tells us both the symbol and atomic number of the elements.
3.
days as there are 7days in a week.
4.
vertical columns are called groups.
5.
seeing the periodic table we can locate it postion that is group 16 period 2.
CONCLUSION :-
1. all the given points tell the properties of periodic table.
Answer:
true
Explanation:
Explanation: Transcription is the process of synthesis of mRNA with specific sequence of codons as per the sequence of DNA. ... mRNA moves out of the nucleus in the cytoplasm. mRNA gets attached to smaller sub-unit of ribosom, where the process of translation occurs.