Antigens; they are molecules that are foreign to the body, thus stimulating a response by the b- and t-cells that aim to defend the body against harmful and mostly foreign bacteria.
Gravitron is a hypothetical String Theory Weightless Particle.
The Nitrogen is the component <span>of the atmosphere that provides great stability due to its own stability as a molecule.</span>
The answer for the food chain would be answer B.
The egg is formed as a result of meiosis.
Meiosis is cell division that forms haploid cells (cells with half the amount of chromosomes as diploid cells).
Haploid cells in humans are sperm (male) and egg (female)
The other cells, like the skin, bone and muscle are a result of mitosis -which is different from meiosis.
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