Answer:
c. The amount of variation of a particular trait does not affect how quickly a trait evolves.
Explanation:
Variation is the diversity observed within a species. In a species all the organisms are not identical. They can vary in different characteristics like shape, size or colour. Variation can lead to natural selection because a particular variant of a trait can be favoured over the other ones and eventually it becomes dominant in the population.
Evolution of a trait is also effected by the amount of variation present in that trait. More the variation, more different will be its response to the changing environment and more time can be required to incorporate these changes within an organism.
Answer:
Fluorine
Explanation:
Fluorine is the element with the symbol F. It is the lightest halogen and it exists as a highly toxic pale yellow atomic gas at standard conditions. This extremely ranks 24th in the universal abundance and 13th interrestrial abundance.
Explanation:
uneven heating of Earth's surface. warm air sinking while cold air rises
You are not supposed to begin the observation of specimens with oil immersion lens.
The microscope is an instrument used in science laboratories to study specimen that cannot be seen with the naked eyes.
The specimen for viewing through a microscope are usually prepared as thin slices or sections.
Among the various parts of the microscope are the x10, x40, and x 100 objective lens.
The x100 objective lens is known as the oil immersion lens because oil is added while using the lens to reduce the amount of light refraction thereby allowing more light to pass through the narrow diameter of the high power objective lens.
The x10 objective which is of lower power, should be used to focus the specimen while the higher power objective which is the x100 oil immersion used for closer observation.
Therefore, you are not supposed to begin the observation of specimens with oil immersion lens.
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Answer:
The sodium-potassium pump (PDB entries 2zxe and 3b8e ) is found in our cellular membranes, where it is in charge of generating a gradient of ions. It continually pumps sodium ions out of the cell and potassium ions into the cell, powered by ATP.
Explanation:
