Answer:
A tight junction is a watertight seal between two adjacent animal cells, which prevents materials from leaking out of cells.
Explanation:
Hello!
By the most general biophysiological definition<span>, the </span>biosphere<span> is the global ecological</span>system<span> integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and </span>atmosphere<span>.
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I think it would be in the cells
The sign of lead poisoning in children would be impaired development.
Lead is very toxic to the brain, so lead poisoning will be especially dangerous in children when the brain is developing at a high rate. Damage to the brain will cause the children to have an impaired development and growth, gastrointestinal pain, or neurological issue like seizure.
