Answer:
The correct answer is - b Pressure in the atria is lower than in the ventricles.
Explanation:
The atrioventricular valves close when the pressure in the ventricles is more than the pressure in the atria. Which leads to the contraction of the papillary muscles to shut the leaflets of the valves,
When the ventricles relax, atrial pressure exceeds ventricular pressure, the AV valves are pushed open and blood flows into the ventricles. However, when the ventricles contract, ventricular pressure exceeds atrial pressure causing the AV valves to snap shut.
I believe Cortex is the last structure of the brain to complete its growth process. Surrounding the brain is the Cerebral cortex which resembles a half shelled walnut, it is the largest, most complex brain structure which accounts for 85% of the brain's weight, containing the greatest number of neurons and synapses, and responsible for the unique intelligence. It is the last brain structure to stop growing, it is sensitive to environmental influences for a much longer period than any other part of the brain.
Answer:
The correct answer is option A. He could collect a large amount of data for a low cost.
Explanation:
A descriptive investigation is a method of the research or investigation where it describes only. The descriptive investigation should carry out the accurate, factual phenomena in a systematic way without influence any causal relationship.
the descriptive investigation does not tell about the reason and method of the phenomena that took place. All three options except option A are false statements in terms of descriptive investigative.
Thus, the correct answer is option A. He could collect a large amount of data for a low cost.
Isnt it going to government funds..?
