Answer:
B or Letter B
Explanation:
Ovules are found in the ovary. The ovary can be described as the oval structure at the base of the flower.
The flower is found in the Angiosperms, that is, the flowering plants. And it is known to be the part of the plant that allow sexual reproduction to occur. The flower usually contains the reproductive parts, which include
* Androecium... This is known to be the male reproductive part of a flower, and it comprises the Anthar { this encloses the pollen grains}, and the filament.
* Gymnoecium... This is the female part of the flower and comprises of the stima, style and the ovary { encloses the ovules}.
In conclusion, the pollen grains will fuse with the ovules,[ this is known as fertilization], to form a fruit. The pollen grains can be compared to the spermatozoa in Man, while the ovules are like eggs in the woman.
<span>Human genetic disorders can be caused largely by the change of the DNA sequence from its normal sequence. This can also be caused by a monogenic disorder, a mutation in a gene. So the best answer to this question would be letter B since nondisjunction causes chromosomal abnormalities.</span>
Answer:
E-----> C------>D------->A------->B
Explanation:
The cerebrospinal fluid (CSF) is the fluid of the central nervous system. It allows for buoyancy as the brain is immersed in the fluid, protection, excretion of waste products from the brain and many more. The production of CSF is by the CHORIOD PLEXUS in the lateral, third and fourth ventricles. The CSF flows through the interventricular foramen from the lateral to the third ventricle and from the third ventricle into the fourth ventricle through the cerebral aqueduct which connects them. The CSF then flows into the subarachnoid space. Absorption of CSF into the blood is by the arachnoid villi and then the CSF enters the blood.
