Hydrogen atoms are compressed together by the enormous gravitational force of the sun, causing them to fuse int a helium atom (which is heavier than hydrogen), subatomic particles and enormous release of atomic energy. The attached picture shows the sequence of the main reaction at the core of the sun.
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>
<u>Y,</u><u> Masculine reproductive structures</u>:
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.
