A portal of entry<span> is the site through which micro-organisms enter the susceptible host and cause disease/infection. Infectious agents enter the body through various </span>portals<span>, including the mucous membranes, the skin, the respiratory and the gastrointestinal tracts.</span>
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Epithelial tissues are widespread throughout the body. They form the covering of all body surfaces, line body cavities and hollow organs, and are the major tissue in glands.
Explanation:
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Answer:
Plants that are close to each other might compete for nutrients, water, sunlight, and territory necessary for sirvival
Girls begin their growth spurt around age 10, while boys begin their growth spurt around age 12.
