Where does CO2 bind to hemoglobin?

A) only at the C-termini of the a-chains
B) at the C-termini of both the a-chains and the b-chains
C) only at the N-termini of the a-chains
D) at the N-termini of both the a-chains and the b-chains


D

Environmental & Atmospheric Sciences

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Using the 5-year moving average lines for reference, in which of the cities does average annual temperature fluctuate the most from one year to the next or from one decade to the next?

The question is based on Figure 24-6, a chart showing average annual temperature from 1905 to 2015 in three U.S. cities: Nome, Alaska; Bozeman, Montana; and Tucson, Arizona. What will be an ideal response?

Environmental & Atmospheric Sciences

A solar maximum is a period during which sunspots are numerous

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

The difference between "mid-latitude" cyclones and "tropical" cyclones is that

A) tropical cyclones can only form over water. B) mid-latitude cyclones can only form over land. C) tropical cyclones occur only during the Northern Hemisphere summer. D) tropical cyclones have only warm air while mid-latitude cyclones have three kinds of air.

Environmental & Atmospheric Sciences

How do rocks differ from minerals?

a) Minerals aggregate to form rocks, but rocks do not aggregate to form minerals. b) Rocks aggregate to form minerals, but minerals do not aggregate to form rocks c) Minerals can be synthesized, whereas rocks only naturally occur d) Some minerals contain amorphous glassy derby or organic matter. However, these components are never found in rocks. e) Rocks can be synthesized, whereas minerals only naturally occur.

Environmental & Atmospheric Sciences