Answer:
An introduced species, alien species, exotic species, adventive species, immigrant species, ... Non-native species can have various effects on the local ecosystem. ... Some species have been introduced intentionally to combat pests
Explanation:
D. flammability
is a chemical property
Answer:
False
Explanation:
its not the lithosphere, that's in the sky, its the crust thats broken into several large plates
<span>Example of Trisomy 21 detected</span>... <span>the presence , which is found in Down syndrome, is calledtrisomy 21.</span> ... <span>Of these, Trisomy 21 and Trisomy 18 are the most common.</span> ... <span>XXX (Triple X syndrome); XXY (Klinefelter syndrome); XYY</span> ... <span>Turner syndrome (XO).
so i think all are right</span>
Answer:
Self-antigens are not recognized and attacked by the T cells.
Explanation:
In immunology, the antigens are those substances which are bound by the antibodies. The antigens can be originated from within the bodies, known as self antigens or from outside the body, known as non-self antigens. The immune system identifies and attacks non-self invaders or the foreign harmful objects present in the body. It does not attack the self-antigens under the normal conditions. This is due to the negative selection of T cells of the thymus.
