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>
Gregory wants to make a hole in a flat piece of wood. He places object Y on the piece of wood, and then object X on top of it.(C) a screw and a wedge
Explanation:
Screw is used to drill a hole in the wood and the wedge is used to insert it properly.
The screw moves in a circular motion and thus creates a hole in the wood whereas a wedge is used to apply appropriate force on the screw .so that it can be placed properly in the wood.
The a screw and a wedge are termed as simple machines.Simple machines are those machines that we make use of to do day to day task at home.
So we can say that Gregory wants to make a hole in a flat piece of wood. He places object Y on the piece of wood, and then object X on top of it.(C) a screw and a wedge
The best answer for this question would be:
environmental conditions affect the pollination of plants.
Because it depicts the starting information or theory that the researcher is stating. His theory is that the conditions of the plant will affect the plant, and therefore experiments on the procedure to prove his theory.<span> </span>
