The mitochondrial DNA (mtDNA) is passed down from the mother to the children almost unchanged. The analysis of mtDNA has provided the forensic scientist with essential tools for determining the source of DNA that they have recovered even from small biological samples. Thus, the answer to the question above is letter B.
Autotrophs are make their own food. For example plants are autotrophs and they get energy from photosynthesis. They convert solar energy into chemical energy. Heterotrophs gain energy and get their food from consuming other organisms. Autotrophs release oxygen into the atmosphere and heterotrophs breathe in that oxygen to grow and develop. The heterotrophs at the top of the food chain consume the ones at the bottom and the cycle continues
False, common examples of pathogens are pollen and animal hair.
An antigen called an allergen causes the immune system to react in an excessively ferocious way to a perceived threat that would otherwise be harmless to the body. Allergies are the term for such reactions.
Technically speaking, an allergen is an antigen that, when exposed to atopic persons, can trigger an immunoglobulin E (IgE) response, resulting in a type-I hypersensitivity reaction.
The majority of Immunoglobulin E responses in humans are only activated in response to parasite infections. Some people, however, may react to a variety of widespread environmental antigens. Atopy is the name given to this inherited tendency. Non-parasitic antigens in atopic people cause erroneous IgE production, which results in type I hypersensitivity.
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Answer:
Well, I think that maybe it can by rain. Hope this helps!
Answer:
All of the gas giants have ring systems... I did a quick check on some websites to make sure and all confirm that each one of the gas giants do indeed have ring systems. I hope that helps. :)