During the process of vaccination, an attenuated pathogen is inserted into the body the organisms. The attenuated pathogen is able to provoke the primary immune response in the body of the organism without causing any harm.
Once the primary immune response is generated, the body creates a memory in form of antibody to the pathogen. After vaccination, if the pathogen infects, the body recalls the memory and generates a secondary immune response. The intensity of the secondary immune response is much higher than the primary one, so, as soon as the pathogen enter in the body, the antibodies against it are activated and result in defeating the infection.
For a better understanding purpose, the intensity of the primary and the secondary immune response is given in the figure:
Answer:
d. a vaccine causes the secretion of antibodies which remain in blood and fight the pathogen at the time of an infection.
b. herbivorous
c. potable
d. saline
To find the similarities and differences in organisms by using possible chromosome and physical characteristics.
(B) regions in the corresponding mRNA that are involved in initiation of transcription
(C) regions that are not transcribed by RNA polymerase
(D) regions that are excised from the corresponding protein after it is synthesized
(E) regions that remain in the corresponding mRNA after splicing
Answer:
The correct answer is option b. "The amount of waste would build up and the toxins produced would harm the animals and humans".
Explanation:
Fungi play a significant position in the ecosystem as decomposers and reuseable. When fungi consume the waste they encourage those other organisms to consume elements such as phosphorus and nitrogen from decomposing matter.
If a dominant fungicide would kill almost all fungi, the amount of scrap would strengthen up and the toxins constructed would injure the humans and animals.
b. marsupials.
c. placental mammals.
d. domestic animals.
Answer:
C. Placental mammals
Explanation:
The placentals are the largest group of mammals, totally dominating the class and terrestrial habitats.
Amnium, the fluid that protects the embryo from adhesions and shocks, is installed in the female's uterus for development with the help of a placenta that provides fixation and nutrients.
This breeding method, although producing a smaller number of offspring per pregnancy, has a high success rate, allowing greater chances of survival to offspring.