Answer:The correct answer is A) Coarse adjustment knob.
Explanation:The coarse adjustment knob is used to raise and lower the stage in a microscope. It is a large knob that moves the stage up and down in larger increments. By turning this knob clockwise, the stage moves upward, and by turning it counterclockwise, the stage moves downward.
The other options, such as the nosepiece, fine adjustment knob, and mechanical stage knobs, have different functions in a microscope. The nosepiece is responsible for holding and rotating the objective lenses, which are used to magnify the specimen. It allows you to switch between different magnifications by rotating it. The fine adjustment knob is used to make smaller, precise adjustments to the focus of the microscope. It moves the stage up and down in smaller increments to achieve a clearer image.
The mechanical stage knobs are used to move the stage horizontally or vertically to center the specimen under the objective lens. These knobs are helpful for scanning the entire specimen and locating specific areas of interest.
In summary, while all the options mentioned have specific functions in a microscope, the coarse adjustment knob is specifically used to raise and lower the stage.
b. thylakoid
c. grana
d. chlorophyll
The correct answer is Chlorophyll.
Chlorophyll is a pigment present in the plant that directly absorbs light from the sun rays. There are two types of chlorophyll called as chlorophyll a and chlorophyll b. They both absorb light. The maximum absorbed spectra is red and minimum absorbed spectra is blue. The green colored spectra is not absorbed by the plants making the plants appear green in color.
b. the efforts of one scientist.
c. work with computer models.
d. complete agreement among scientists.
The answer is a different ideas from different scientist.
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The answer is phylum Sarcodina and class Heliozoa.
Actionophryx belongs to the group of Sarcodina. However, this is an older classification, and it is known that it belong to the groups of amoebas. It has a spherical body (helios, greek for sun) with axopodia (arms) so it is classified to the class sun-animalcules or Heliozoa. The body is surrounded by a glassy silica shell. It lives in freshwater, but some species are found in seas and oceans.
The allele whose trait always shows up in the organism when the allele is present is called dominat allele.
The dominant term is related to the genetic transmission of a trait and is represented, in biology, by a capital letter (A, B or V). While recessive, represented by a lowercase letter (a, b or v), they represent genetic traits transmitted only in the absence of the dominant gene.
We say that an allele is dominant when it manages to determine a phenotype, even if it occurs in a single dose. This means that the dominant allele will express itself in both homozygosity and heterozygosity. Dominant allele is expressed in the phenotype, even in a single dose.
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