Answer:
(1) they keep toxic substances out of the cell.
(2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles
Parts of a human leg are bones, muscles, tendons, ligaments, nerves, and blood vessels.
The iron-rich minerals present in the magma align themselves with the already existing magnetic field of the Earth. When the magma starts to cool down, the iron rich minerals are the first to solidify first. The magnetic field of the Earth align these minerals as the needle of the compass. The alignment of these iron-minerals is fixed once the magma is solidified completely.
Hence, the given blanks can be filled with 'iron and solidify'. respectively.
Answer:
A
Explanation:
The south wanted more slaves because they could clean more and the south could make more money. The more slaves they had the more money they made.
The central nervous system<span> (</span>CNS<span>) is composed of the brain and the spinal cord. The </span>peripheral nervous system<span> (</span>PNS<span>) is composed of all of the </span>peripheral nerves<span>that connect all of the parts of the body with the </span>CNS<span>. List three general functions of the </span>nervous system<span>.</span>
