P-waves are the fastest, and can travel through nearly any material
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Answer:
The free energy released by ATP hydrolysis that may be coupled to an endergonic process via the formation of a phosphorylated intermediate.
<em>Hope this helps</em>
<em>-Amelia The Unknown</em>
Answer;
-Stimulus
Environmental change that triggers a definite action on the part of the organism serves as a stimulus.
Explanation;
-A stimulus (plural stimuli) is a detectable change in the internal or external environment.
-A stimulus can be internal or external. Sense organs, such as the ear, and sensory receptors, such as those in the skin, are sensitive to external stimuli such as sound and touch. For instance; A tropism is a response that an organism makes to a stimulus. An example of a common tropism in plants is phototropism. Plants grow towards light sources, and if the direction of light is changed, the plant will also change its direction of growth to accommodate for survival.
Answer:
He successfully and carefully performed a heart surgery on a man with a knife wound to the heart even though there were no X-ray machines to help him see into heart, while still making sure everything was done under antiseptic conditions.
Explanation:
Dr William Hale was in a dilemma when a black man with a knife wound to the heart stumbled into his hospital, Provident Hospital. Since there were no X-ray machines to help see into the heart the extent of the wound, the only option was opening the heart itself. It was a surgery no one had performed before, so it was a great risk. However, not performing the operation too was sure to result in the death of the man.
Dr William Hale confidently reassured the man that he could help. Assisted by other doctors, he carefully cut into the man's chest, examined the depth of the stab wound, found and repaired a torn blood vessel, stitched up the pericardium, and very carefully cleaned the wound and the chest cavity, to make sure that no infection set in. Afterwards, he sealed up the man's chest while still ensuring everything he did was done under antiseptic conditions. The man survived and lived in for many decades.
