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4 years ago

What is a cold front in weathering

Biology

2 answers:

diamong [38]4 years ago

7 0

A cold front is when the warm air is at the top and the cold air is down at the bottom

Tema [17]4 years ago

3 0

A cold weather front is defined as the changeover region where a cold air mass is replacing a warmer air mass. Cold weather fronts usually move from northwest to southeast. The air behind a cold front is colder and drier than the air in front.

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Under cpt's definition, after a consultation, who takes responsibility for the patient's care?

nikdorinn [45]

CPT refers to Current Procedural Terminology. It is a medical tool that is used to report medical, surgical and diagnostic procedures and services to medical providers and other related organizations.
Under CPT definition, after a consultation, THE REFERRING PHYSICIAN takes the responsibility for the patient's care.

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3 years ago

is a mathematical modeling approach to predicting the outcome of natural selection on behaviors when multiple organisms are inte

Art [367]

Evolutionary game theory is a mathematical modeling approach to predicting the outcome of natural selection on behaviours when multiple organisms are interacting.

<h3>What is natural selection? </h3>

According to modern concept of evolution natural selection is not a bloody battle as was emphasized by Darwin and Wallace.

It is a peaceful process that has little to do with, "struggle for existence" or "elimination of unfit" or "survival of the fittest".

Natural selection really means differential reproduction ( some members of the population produce lage no of offspring, some are few and still others none.

Those that produce large no of offspring contribute greater percentage of genes to the gene pool of the next generation than those that produce fewer offspring.

If differential reproduction continues for many generation ,then genes of the individual which produce more offspring will become predominant in the gene pool of the population.

This leads to change in the gene frequency of the population.

Individual which are best adopted to the environment having greater no of surviving ones.

Survival of the organism to the reproductive age and their selection for mating is the important factors which results in differential reproduction.

There are three types of natural selection stabilizing

selection, directional selection and disruptive selection.

Learn more about natural selection here :

brainly.com/question/6981381

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2 years ago

The theory of island biogeography describes the number of species on an island as being determined by an equilibrium between the

ICE Princess25 [194]

Answer: the " large, near-shore island " .
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4 years ago

Jimmy has always been told that if you have chicken pox once, you will not get the disease again. He had chicken pox when he was

Solnce55 [7]

In immunology two types of immune response are described depending on whether there is prior contact with the antigen.

• At this first contact, only lymphocytes with receptors specific to the antigen in question are stimulated and lead to the production of antibodies capable of neutralizing it. The lymphocytes capable of recognizing a specific antigen are very few and the production of antibodies - of low intensity and limited duration - is detectable only after a period of latency of several days. This is called the primary response. The specificity of the resulting seropositivity, however, makes it possible to detect contamination (seroconversion).

• Upon re-contact with an antigen that has already triggered a primary response, specific antibody production is found to increase rapidly after a short latency period. The secretion of IgG then reaches levels much higher than those observed during the primary response, while that of IgM is of the same order. This early and intense response, called secondary response, most often results in the destruction of infectious agents before any clinical sign.

• Many centuries before the discovery of microbes, it was noted that people who developed a contagious disease without death were then specifically immunized against the disease, without being protected against others.

• The ability to react appropriately to an already received stimulus supposes the existence of a memory. The immune memory is based on the existence of memory B and T lymphocytes, resulting from the clonal expansion due to the first contact with the antigen. Their lifespan is significantly higher than that of other lymphocytes and their high reactivity gives its rapid and intense character to the secondary response.

5 0

3 years ago

Read 2 more answers

Pls need an answers for these blanks bio

Darina [25.2K]

Answer:

Ultraviolet, GMO protein

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3 years ago