Answer:
<em>When four oxygen molecules are bound to hemoglobin's subunits and one subunit releases its oxygen, the other three subunits change shape again. This causes them to release their oxygen more readily.</em>
Explanation:
<em>Each hemoglobin molecule can bind up fou oxygen molecules, hemoglobin exhibits what it is call cooperative binding, as oxygen binding increases the affinity of hemoglobin for more oxygen. Incresed affinity is caused by a conformational change, or structural change in the hemoglobin molecule.</em>
<em>The cooperative binding of oxygen to hemoglobin is an important adaptation for gas exchange . Cooperativity allows hemoglobin to release much more oxygen to our body's tissues.</em>
The two types of succession are primary and secondary. <span> Primary succession is the series of changes that occur on an entirely new habitat which has never been colonized before, while secondary occurs on places that have already been colonized before.</span>
Answer: they absorb photons from sunlight.
Explanation:
<span>An operon is an arrangement of genes consisting of an operator, a promoter, and a repressor.</span>
<span>One reflex reaction to maintaining homeostasis in the body is shivering. In response to cold temperatures, the muscular system moves our muscles quickly to warm them up as a rapid, short term solution for homeostasis. Another example is the withdrawal reflex, which occurs as a response to pain. Pain receptors activated by the painful stimulus activate the motor neurons in the body, which in turn contract muscles to move parts of your body away from the pain.</span>
