The easy experimental answer to this question is 264 hours<span> (</span>about 11 days<span>). In 1965, Randy Gardner, a 17-year-old high school student, set this apparent world-record for a science fair. Several other normal research subjects have remained awake for eight to 10 days in carefully monitored experiments.</span>
This is Circulation !!
Pathway of the blood from Heart to Lungs to Heart then the whole body !!
Answer:
Left atrium
Explanation:
The four pulmonary veins return oxygenated blood to the left atrium.
Is it the theory of evolution or “Lamarckism”
Answer:
Evolution.
Explanation:
The ground finch could not survive after the drought with the size of its beak.
The beak required in order to feed on the hard seeds needed to be stronger and longer.
Due to this, the finch beak <em>evolved and developed into a stronger longer beak</em> adapted to feeding on large hard seeds.
Without this evolution, all the finches left on the Galapagos island could face <em>extinction out of starvation.</em>
