Explain how and why temperature changes with respect to latitude and with respect to season. What will be an ideal response?
Because the sun strikes the earth at an oblique angle because of the tilt of the earth’s axis,
some portions of the earth do not receive equal sunlight. The lower latitudes, near the
equator, receive a more uniform amount of sunlight, resulting in a more constant warm
temperature. This also results in the polar areas receiving less sunlight, and the sunlight that
does reach i, has to pass through thicker layers of atmosphere.
The same phenomenon also causes seasonality.
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How does collecting more/alternative data put less burden on the modeling choices of the analyst?
A. By collecting more data, an analyst can implement a fixed effects design. B. By collecting more data, an analyst can completely avoid characterizing a determining function. C. By collecting more data, an analyst can avoid heteroscedasticity. D. By collecting more data, an analyst can avoid having to make functional form choices to fill in data gaps/extent of the data.
Which of the following is true for a nerve cell at rest?
A. Channels allow for the movement of potassium out of the cell. B. Sodium ions are concentrated outside the cell. C. Channels allow for the movement of chloride into the cell. D. Channels allow for the movement of potassium out of the cell AND sodium ions are concentrated outside the cell.
The final by-products of many condensation
reactions are a. carbon dioxide molecules. b. hydrogen ions. c. hydroxyl ions. d. oxygen gas and hydrogen gas. e. water molecules.
Thermoregulation depends on monitoring of blood temperature. What structure acts as the mammalian temperature sensor?
A. peripheral blood vessels B. adrenal medulla C. thyroid D. anterior pituitary gland E. hypothalamus