The ultimate source of energy for living organisms is ____
Fill in the blank(s) with correct word.
Ans: the sun
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Explain how reproductive isolation is central to the biological species concept
What will be an ideal response?
During inhalation, the ____
a. external intercostal muscles relax b. pressure in the lungs is less than atmospheric pressure c. diaphragm moves upward and becomes more curved d. chest cavity volume decreases e. lung pressure increases
Western Oregon generally has cooler summer temperatures and warmer winter temperatures than do same-latitude states that are inland; similarly, Cape Cod (a coastal peninsula southeast of Boston) generally has a more moderate climate than interior
Massachusetts does. Why?
In modern times beer and wine are considered recreational beverages. In the past they were important staples in the human diet, so much so that their consumption is often remarked upon in historical documents. Why were they so important?
What will be an ideal response?