Answer:
Due to reduced rate of egg production and several disorders caused by hormonal imbalances
Explanation:
Women lose their fertility at the age of 45 while men are able to produce sperm throughout their life. The reasons however for this are not very clear but it has been found that the rate of production of egg decreases with the advancement of age of females. Also the quality of egg degrades thereby reducing the likelihood of an egg being genetically normal. A woman along with faces several disorders due to the hormonal imbalances and one of these disorders is PCOS, ovarian insufficiency etc., which lead to distorted pattern of menstrual cycle.
Answer:
"low cost of water to users and lack of government subsidies for improving the efficiency of water use"
Explanation:
- low cost of water to users and lack of government subsidies for improving the efficiency of water use
The leading cause of water pollution? agriculture.
In the western United States, as compared to the eastern United States, the major water problem is chronic drought and insufficient runoff
Answer: Prokaryotes lack an organized nucleus and other membrane-bound organelles. Prokaryotic DNA is found during a central a part of the cell called the nucleoid. The plasma membrane of a prokaryote acts as an additional layer of protection, helps maintain cell shape, and prevents dehydration.
Explanation:
<span>When you are pregnant, you do not ovulate because you have already fertilized an egg and it is embedded into the uterus where it is growing into a baby. The body knows this, so it does not shed the uterine lining. The shedding of this lining is triggered by hormones which change when the body is pregnant. During pregnancy, a large amount of progesterone is initially produced which helps to prevent the lining from shedding. If you are not pregnant, your progesterone level will begin to decline at the end of your cycle, triggering the shedding of the lining and the period. Birth control pills alter your hormones to mimic a pregnant state. This will prevent the body from releasing an egg and then shedding the uterine lining.</span>
Tentacles of an octopus as well limbs of a lizard are analogous structures.
Analogous structures or organs perform the same function in different organisms that bear no resemblance to each other anatomically. Analogous structures are formed as a result of convergent evolution, i.e. different structures evolving for the similar function and thus having similarity. Tentacles of an octopus as well as limbs of a lizard are used for the similar function, i.e. locomotion in this case.
On the other hand, homologous structures result from divergent evolution. Homologous organs contain a similar basic structure but perform distinct functions in different organisms.
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