Answer:
because the real planets are huge
Explanation:
lma o
Answer:
This means Chicago will experience the equinox at 2:50 a.m., Phoenix at 1:50 a.m. and Los Angeles at 12:50 a.m., all local time. At this moment, the equator will be pointed directly at the center of the sun. The fall season will last until the winter solstice, which occurs around December 21
Explanation: Hope this helps u good luck
Answer:
Innate immunity is a non-specific immune system which provides defence against any pathogenic microorganism in early stages. It includes physical barrier such as skin, chemical barriers such as saliva, tears, et cetera, phagocytic cells such as macrophages, et cetera.
Acquired immune system is the one which develops after exposure to pathogen or antigen. It is highly specific in nature. It includes B-lymphocytes and T-lymphocytes. It includes the production of antibodies.
Vaccines are used to develop acquired immunity in people. The process is termed as vaccination or immunisation. Heat-killed or weakened pathogen or antigen is inserted into a person after which a person develops antibodies and memory cells against that pathogen or disease. So, the immune system acts more vigorously against that pathogen in secondary infection.
Thus, a person becomes immunised.
Answer:
Explanation: Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
Since chemical weathering is the reaction of rocks with other chemicals, the answer should be answer D!
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