Answer:
Option (B)
Explanation:
The pelagic sediments usually refer to those sediments that are found at the deep ocean floor. These are clay that is mostly brownish or reddish in color. The sediments are usually very fine-grained and are deposited at a very slow rate, in many parts of the abyssal plain. These sediments are comprised of less than 30% of the biogenous materials such as the calcareous as well as siliceous particles. There occurs a lesser proportion of biogenous sediments, comprising the organic matter. Some of the examples of pelagic sediments include oozes, carbonate sediments.
Thus, the correct answer is option (B).
Answer:
Yes, the population of rabbits is in genetic equilibrium because both white and brown rabbits have equal chances of survival throughout the year. During the winter season, the brown rabbits stand out and are likely to be eaten by predators, but during the summer, white rabbits stand out and are likely to be eaten.
Explanation:
Brainliest would be appreciated!
Answer:
it was only 90 percent effective
Explanation:
In 1954 a massive controlled field trial was launched, sponsored by the National Foundation for Infantile Paralysis. Almost two million U.S. children between the ages of six and nine participated. In some areas of the country half of these “Polio Pioneers” received the vaccine, while half received a placebo. In other areas of the country children who did not receive any vaccine were carefully observed. On April 12, 1955, Thomas Francis, Salk’s mentor and the director of the trial, reported that the vaccine was safe, potent, and 90% effective in protecting against paralytic poliomyelitis.
Answer:
<em><u>Half</u></em>
Explanation:
The probability of getting a boy or girl is
1/2
Answer:
are refer to the endomembrane system in the cytoplasm. it packages protein into membrane bound vesicles inside the cell
