Answer:
False
Explanation:
Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg. They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.
The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.
Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.
Answer:
The byproducts cause the released of high concentration in the fermentation acids and the deceases in the level pf PH. It basically leads to inhibition of the growth of many bacteria. The toxicity at low PH value of the fermentation acids traditionally defined the uncoupling mechanisms. The fermentation acid are resistant bacteria with low PH and It able to generated the ATP and groe the low PH intracellular.
Bromothymol blue is used as an indicator in many laboratory reactions.<span> This is a dye that is considered to be pH sensitive</span>
A very acidic pH level is 1, and a very basic pH level is 13.
b. 10% of energy is transferred from the first to the second trophic level.
Explanation:
In trophic level flow of energy is one way, only a small amount of energy get transferred with the organism. A large amount of energy gets dissipated in life processes like respiration, reproduction and digestion. The energy is also released as waste product. Thus, only ten per-cent of the total energy is present in the organism.
The energy transfer does not depend on the number of trophic levels.
Each trophic level receives the 10% energy from the previous trophic level as when algae is eaten by flagship.
