c. warm air near the equator.
b. the Coriolis effect.
d. continental deflection.
Answer:
The correct answer is option B, The coriolis effect
Explanation:
The coriolis effect describe the pattern followed by an object travelling around the earth. This effect is guided by the rotation of earth. Large air currents appear to bend in the right direction in northern hemisphere while the coriolis effect produces reverse condition in the southern hemisphere where air currents bend to the left
The impact of the Coriolis effect is dependent on velocity of Earth and the velocity of the object and also on the fluid being deflected by the Coriolis effect
Higher Coriolis effect are seen when the speed is high or long distances are traversed.
The vaccine wears out over time?
The flu virus changes every year <----?
The body eliminates the vaccine
Answer:
The correct answer would be the third option.
Vaccination refers to the administration of weekend or attenuated microorganism or antigen in the body. It helps in developing adaptive immunity in the body.
Thus, vaccine neither wears out with time nor body eliminates the vaccine.
However, the flu virus changes every year due to the short life cycle. Consequently, the memory B cells cannot recognize changed virus due to which the body loses its immunity against the virus.
This is why doctors recommend that people should get flu shot each new flu season.
Answer:
Totipotent - Able to differentiate into any type of cell of the human body or of the placenta. For example, fertilized egg cells and the cells from the egg’s first few divisions.
Pluripotent - From totipotent cells, able to differentiate into almost any type of cell of the human body. For example, blastocyst cells
Multi potent - Can develop into more than one type of cell, but more limited than pluripotent cells. For example adult stem cells and cord blood stem cells
Unipotent - Can only differentiate in a single lineage. Skin cells are the most abundant type of these.
Residents praise community leaders for saving land for a new park.
Limiting the use of public land caused business to have less customers.
Less land pollution has led to lower spreading of diseases.
Answer:
Explanation:
The statement that describes a positive political outcome of how land can be used is: "Residents praise community leaders for saving land for a new park."
This statement highlights a positive outcome in which community leaders make decisions to preserve land for a new park. By doing so, they are meeting the recreational needs of the residents and providing a public space for enjoyment and relaxation. This decision is praised by the residents, indicating that it is seen as a valuable use of the land and a positive political outcome.
The other options provided do not describe positive political outcomes related to land use:
- "When common lands are protected, land degradation slowly disappears." While this statement highlights a positive environmental outcome, it does not specifically address the political aspect of land use.
- "Limiting the use of public land caused business to have fewer customers." This statement suggests a negative outcome where limiting the use of public land negatively affects businesses and their customer base.
- "Less land pollution has led to lower spreading of diseases." This statement also highlights a positive environmental outcome but does not focus on the political aspect of land use.
In summary, the statement "Residents praise community leaders for saving land for a new park" describes a positive political outcome of how land can be used, as it highlights the satisfaction and appreciation of residents towards the decision made by community leaders to preserve land for a park.
Answer:
True
Explanation:
Koch's postulates was proposed to show a causative relationship between a microbe and a disease.
Koch's postulates
•The microorganism must be present in large quantity in all organisms affected by the disease, but should not be seen in healthy organisms.
Koch abandoned this due to his discovery of asymptomatic carriers of cholera and of typhoid fever. Asymptomatic or subclinical infection carriers are seen in diseases, especially viral diseases.
•The microorganism must be seperated from a diseased organism and nutured in pure culture.
This can suspended for specific microorganisms or entities which(at the current time) can't be nutured in pure culture. Viruses uses host cells to grow and replicates and not in pure culture.
•The cultured microorganism should lead to disease when it infects a healthy organism.
It says "should", not "must".
NOTE: NOT ALL organisms introduced to an infectious agent will be infected which may be due to certain factors like general health and good immune functioning; vaccination; or genetic immunity. Its best explained using the resistance to malaria as a result of presence of at least one sickle cell allele.
•The microorganism must be reisolated from the inoculated, diseased experimental host and observed as being identical to the basic specific causative agent.
A single pathogen may lead to several disease conditions. A singualr disease infection may be due to several different microorganisms. While some pathogens cannot be cultured in a pure culture in the lab, others can infects humans.