The answer to the question stated above is letter b. <span> <span>a meteor or asteroid colliding with Earth
</span></span> <span>The mass extinction at the end of the Mesozoic Era was caused by </span>a meteor or asteroid colliding with Earth. This was said to happen about 65 million years ago.
Circulatory system pumps blood from the heart to the lungs to get oxygen. The heart then sends oxygenated blood through arteries to the rest of the body. The veins carry oxygen-poor blood back to the heart to start the circulation process over. Your circulatory system is critical to healthy organs, muscles and tissues.
Could you ask again but with more details? I do not understand.
The answer is: " thalamus " .
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"<span>During an epileptic seizure, the triggering of convulsions would not directly involve the uncontrolled activity of neurons located in the <u> thalamus </u><u /> ."
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Chromosomes that they give you.
