Answer:
Interphase is when the cell grows and duplicates chromosomes. This is important for the cell to divide, because otherwise, the cell would shrink everytime it divided and would not have a sufficient amount of DNA
Explanation:
3. Not all cells have receptors for the molecule.
The main reason a signaling molecule is not receive by every cell nucleus is that not all cells have receptors for that particular molecule. Cells have specific receptors on their surface to recognize and respond to their corresponding signaling molecule. Cells that lack the specific receptors for a given signaling molecule will not respond to it, regardless of the size of the cell nuclei or other factors such as the stability of the molecule itself.
A person with an immune system which is weakened may not be able to fight against infection reason being that the white blood cells which makes up the immune system, fighting off infection and protecting the body against disease which cause organisms are weak.
For a person to be able to fight disease the immune system should be highly complex. For health maintenance thee should be balanced and strong immune system.
Impaired immune response can pose to a serious bad health.
To avoid the influence of immune someone should avoid emotional stress, environmental and chemical exposure and physical stressors for example lack of enough sleep.
Answer:
His immune system cannot fight against invading pathogens.
Explanation:
Weaken immune system represents a state of immunodeficiency, in which immune system of an individual fails to fight properly with infections and cancer.
This is due to inability of body to make functional immune cells, such as neutrophils, T cells, B cells, and macrophages or decreased production of these cells and other components of immune system that provide protection against invading pathogens.
A. fog
B. dew
C. clouds
D. smog
Answer:
Smog
Explanation:
Melanism related to the process of adaptation is called adaptive. Most commonly, dark individuals become fitter to survive and reproduce in their environment as they are better camouflaged. This makes some species less conspicuous to predators, while others, such as black panthers, use it as a foraging advantage during night hunting.Typically, adaptive melanism is heritable: A dominant gene, which is entirely or nearly entirely expressed in the phenotype, is responsible for the excessive amount of melanin.
Adaptive melanism has been shown to occur in a variety of animals, including mammals such as squirrels, many felines and canids, and coral snakes. Adaptive melanism can lead to the creation of morphs, the most notable example being the peppered moth, whose evolutionary history in the United Kingdom is offered as a classic instructional tool for teaching the principles of natural selection.
Answer:
C
Explanation: