Answer:
In the adult heart, blood in the right chambers of the heart cannot enter the left chambers without passing through the lungs. (Ans. A)
Explanation:
In heart, heart muscle cells is responsible for the circulating the blood throughout the body. The heart contains four chambers, two upper called as atrium and two lower called as ventricle, 1 atrium and 1 ventricle present on both right and left sides of the heart.
Blood which is returning from other parts of the body and is no longer oxygen rich, enters from the top right chamber of the heart. Than this blood is pumped into the right vertical and through the pulmonary artery into the lungs for absorb more oxygen.This oxygen rich blood is then pumped into the top left chamber present in the heart, and then into the lower left chamber before being pumped out into the body from the aorta.
So, the answer is A.
Answer:
An enzyme can be described as a biological molecule which catalyzes a reaction. Each organism works best at an optimum temperature and pH.
If the pH is too high or too low than the optimum pH, then the enzyme such as enolase will become denatured and it will not be able to catalyze the reaction.
A change in pH causes the enzyme the shape of an enzyme to get changed or it changes the specific charge properties of the substrate of that enzyme. As a result, the substrate is no longer able to fit into the active site of the enzyme. Hence, the enzyme is not able to catalyze the reaction.
Ok since you don't have any answers to choose from I would say Functions is the right answer. Usually we're supposed to explain why but I'm not sure how to for this question, sorry.
Answer:
The forest, maybe the atmosphereExplanation:
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