Silent mutations are base substitutions that result in no change of the amino acid or amino acid functionality when the altered messenger RNA (mRNA) is translated.
<span>A physical system is best characterized as a collection of MATTER THAT HAS DISTINCT BOUNDARIES.
</span><span>How does this phenomenon validate the Law of Conservation of Energy?
</span><span>The light energy travels through the water until it is reflected or absorbed.
</span><span>What conditions would most likely be present in this region?
Organisms growing on bare rock
</span><span>What is the best explanation based on these observations?
</span><span>Lobsters are adapting to cooler temperatures.
</span><span>- Ideal water temperature for lobster is around 53-64 degrees Fahrenheit. With the exceedingly warm waters (68 degrees Fahrenheit), lobsters are forced to move to the north where the temperature is ideal for their life cycles.</span>
Ecosystem is a living system, where living organisms interacts with their environment and among each other.
Due to some hazardous processes like, Global warming, Green-house effect, increasing pollution, ecosystem is degrading.
We live in our Ecosystem, if it will get destroyed, our existence would be impossible. So, in order to save ourselves, we need to save it.
That's why biologists, concerned about ecosystem disruption
Hope this helps!
Answer:
The correct answer is option - d. Production of primary spermatocytes.
Explanation:
The accessory cells or supporting cells present within the seminiferous tubules of reproductive system termed as the Sertoli cells. They play various roles in the body and reproductive system.
Sertoli cells make blood-testis barrier in adjacent Sertoli cells in the seminiferous tubules. These cells secrete different types of enzymes and hormones such as inhibin which are also secreted by ovary and placenta in females. Sertoli cells produce seminiferous tubular fluid to provide nutrition to the sperm. Apoptotic germ cells are timely eliminated by these cells.
Thus, the correct answer is option D. Production of primary spermatocytes.
