Answer:
101
RESOURCE LIBRARY COLLECTION
ABIOTIC FACTORS
An abiotic factor is a non-living part of an ecosystem that shapes its environment. In a terrestrial ecosystem, examples might include temperature, light, and water. In a marine ecosystem, abiotic factors would include salinity and ocean currents. Abiotic and biotic factors work together to create a unique ecosystem.
Learn more about abiotic factors with this curated resource collection.
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Answer:
Founder effect.
Explanation:
Founder effect is a case of genetic loss due to an event in which a small subset of individuals of a population becomes isolated from a larger population. As the problem states, this population will never represent the diversity existing in the original larger population, and without the opportunity to interbred with a different population, this group will become distinct.
One of the reported outcomes of the founder effect is the explanation of the higher prevalence of some genetic disorders in specific populations.
Reproduction. Not everyone is capable of reproduction therefore, it becomes something that the rest of society “has to do”. I really hope I make sense and answered this right.
.......is secreted into the bloodstream, whereas _____ is secreted into mucus such as gastrointestinal fluid, colostrum, saliva, tears, and sweat:
a. Monomeric IgM; pentameris IgM
b. Monomeric IgA; dimeric IgA
c. Monomeric IgA; dimeric IgM
d. Dimeric IgA; monomeric IgA
Answer:
b. Monomeric IgA; dimeric IgA
Explanation:
IgA is a class of antibodies that are found mainly in body secretions. In sweat, tears, saliva, mucus, breast milk, and gastrointestinal secretions, IgA is secreted as a monomeric antibody. Smaller quantities of this class of antibodies are also present in blood and lymph. However, IgA is present in a dimeric form in the bloodstream. It makes up 10–15% of all antibodies in the blood. The main function of this class of antibodies is to give localized protection of mucous membranes against bacteria and viruses.
