After six to eight days, the adaptive immune response begins and is specific to the infection. It involves two types of white blood cells: T cells (cellular response) and B cells (antibody response).
Generic reaction to ANY infection; Innate immune response cells generate interferons1 and other substances (cytokines); Interferons prevent virus reproduction; Phase 2 is triggered; Innate immune response.
The body's defense against viral infections
At this stage, infection in phases one and two can be stopped.
1. The early signs of infection, such as fever and muscular pains, are brought on by interferons and cytokines.
2. The adaptive response could not be stimulated right away if the innate reaction is "weaker" in some individuals (such as the elderly or those with underlying health issues).
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Answer:
Allopatric speciation
Explanation:
Allopatric speciation is a type of speciation that takes place when a group of species are divided into two different groups which are separated from each another. In allopatric speciation, a geographic barrier such as a water body (river) or a mountain range forms and prevents the species from mating with each other. As the species are separated into two groups, each of them develops its own distinct traits based on the demands of their unique environment or the inherited traits of the group that are passed on to offspring.
Water act as an acid or base
Answer: Synaptic gap
A synaptic gap is the space between two neurons where the axon of a sending neuron communicates with the dendrites of a receiving neuron by using chemical messages.
Explanation:
Neurons are joined end to end in a special way, the axon of one neuron forms a junction with the dendrites of the next neuron. However, the two neurons do not touch, but leave a gap called synaptic gap.
Thus, synaptic gap is the answer.
