Answer:
B
Explanation:
Amount of energy decreases as it goes higher up the trophic levels.
Answer: D.
Explanation:
Viruses can be cultivated within appropriate hosts, such as a living cell . For example, bacteria are grown in an acceptable growth medium to research bacteriophages; then bacteriophagi are added. Within the bacteria, the bacteriophages replicate and greatly increase their numbers.
Diploid cell lines (or strains) are subcultured approximately 100 times before death. A lot more useful in the laboratory and they can be kept in liquid nitrogen forever. The human embryonic fibroblasts are one example of this kind.
As diploid cell line, developed from human embryos have more accurate results and can be stored for longer period of time, they are widely used in cultivation and isolation of viruses that require human hosts.
Hence, the correct option is D.
The blood travel to your liver before transporting nutrients to other parts of your body in order to filter out substances that are not needed for the body. The liver <span>regulates the composition of blood, including the amounts of sugar (glucose), protein, and fat that enter the bloodstream. It removes bilirubin, ammonia, and other toxins from the blood. </span>
The major purpose of the iris in the eye in terms of the
visual system is focusing the light on the retina as the iris is responsible of
managing the light passing or reaching in the retina of the eyes.
