Blood flow is greater when you exercise because the blood vessels in your muscles dilate. Imagine water flowing through a fire hose compared to a garden hose.
Answer:
2
Explanation:
The dominant Round Yellow will be most numerous phenotype. A lesser number will be Round yy, the recessive not yellow.
It’s due to stem cells. The genes in dna turn on and off to give a cell a specific job, so stem cells can be “programmed” as any cell the body needs. (Muscle cell, skin cell, etc)
Answer:
Type Il cell.
Explanation:
Surfactant may be defined as the chemical that decreases the surface tension between the lungs. Pulmonary surfactant is the thin layer of fluid that increases the efficiency of gas exchange.
Type II alveolar cells of the lungs produces the surfactant. Lipida and proteins are the major constituent of the surfactant produced in the lungs. The surfactatnt is important for maintaining the integrity of alveoli.
Thus, the correct answer is option (e).
The correct answer is (c) Small amounts of a mutagen often do not have an effect on health.
The doctor will explain that small amount of mutagen(x-ray) often do not have any severe health issues. Radiologists are trained to use the optimal amount of x-rays required for the procedure and this amount is very less. Properly carrying out the whole procedure minimizes the risk. The amount of radiation used is small and is turned off soon after the procedure is completed. So, small amount of x-ray exposed for a very short period of time is not risky.