The most common transfusion reaction, especially in patients lacking either IgA especially serum IgA, is the development of potentially severe hypersensitivity reactions or anaphylaxis. The most probable culprit is the presence of IgA in the transfused blood, because since the individual lacks IgA, then the IgA in the transfused blood is considered a foreign body triggering an allergic response.
I think you're confused. There are only two sexes, male and female. Sex is what you were biologically born as from birth, while gender is what you choose to identify as. Gender is a choice, sex isn't. They couldn't discover any other genders because at the time they probably didn't even know what gender was like three thousand years ago, therefore they couldn't look like a different gender.
The correct effects of Volatiles are; Volatiles may warn nearby plants of the same species, so that they can mount a biochemical defense. They may also attract parasitoid wasps to attack an insect herbivore. Volatile terpenoids and other compounds emitted from leaves in response to insect damage allow insects parasitoids such as parasitic wasps and predators to distinguish between infested and non infested plants, and thus aid in locating hosts or prey.
I think they can help the birds my the climate
diffusion. would be the best answer to use