<span>In table or Excel, it's merging or combining.
In biology, cells generally don't combine, they split (mother cells splits into two daughter cells)</span>
Answer: C. A substrate
Explanation:
A substrate is a substance on which an enzyme act. The enzyme acts on substrate X and converts it to Y.
Answer:
answer is d) all of these choices are correct.
<span>haemoglobin. hope this helps!
</span>
Answer: A. A blockage in the aorta
Explanation:
A heart attack happens when one or more aorta or coronary arteries get blocked. With the passage of time, the coronary artery becomes narrow that is because of the deposition of various substances such as fat, cholesterol and other reserves. This restricts the smooth circulation of blood hence results in heart attack or heart stroke.