<span> In order for the living of the species, when they reproduce, they do so in the millions so that a some of the progeny will be bound to survive.</span>
Epithelial tissue <span>covers the body surface and forms the lining for most internal cavities. </span>
False. Type B blood has B antigens and anti-A antibodies.
A star is a fusion reactor. Under enormous pressure, resulting from gravity, light nuclei of gases such as hydrogen merge to form helium, and since this process releases energy, the start begins to radiate the excess energy. Later on, helium fusion produces heavier elements, and so on.