Are only found in the heart
Answer:
lithosphere = glaciers
biosphere = horse and mountains
atmosphere = oxygen
hydrosphere comprises of biosphere and hydrosphere
Explanation:
The answer, I think, is molecules.
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Answer: Booster dose of vaccine is given to elicit a secondary immune response ( by means of re-exposure of pathogen in the booster dose) so that more number of long lived antibody producing plasma cells are produced in the body.
Due to this, a higher level of protection is created in the body.
Whenever the body encounters the disease causing agent, it can easily clear off the infection.
Thus, booster dose serves as an additional vaccine dose to boost the memory of the immune system against a particular disease.
Example of vaccine that require booster dose- HPV ( human pappiloma virus), Hepatits A, Hepatitis B, Polio.
It is the main endocrine gland and a small structure in the head. It's named the "master gland" because it produces hormones that control other glands and many other body functions including growth. It consists of the anterior and posterior pituitary.
Hope that this helps! Also nice username