38: Is Primary Producers
39: Is 9,990
40: Is Fungus
41: Is A
42: Is A
Answer:
- Blood travels at a higher velocity in arteries than in veins.
- The volume of blood flow in the arteries and arterioles is greater than the volume of blood flow through the capillaries
- Blood pressure is higher in arteries than in veins.
- The total cross-sectional area of the capillaries is greater than the total cross-sectional area of the venules and veins
Explanation:
The lumen of arteries is larger than that of arterioles and capillaries. However, even though they have a smaller lumen compared to veins, their walls are thicker to bear the pressure of the blood as it is pumped by the heart to the tissues. Therefore the blood pressure and velocity of blood in arteries (that pump blood away from the heart) is higher than in capillaries and veins. Veins take blood back to the heart from tissues hence this blood is under lower pressure and velocity. This is why veins have valves to prevent the back-flow of blood against gravity.
Due to the large cross-section area of capillaries the blood flow is here is slower hence giving time for blood to linger a bit so there is an exchange of materials between the blood plasma and the interstitial fluids that nourish the cells.
Rubber or plastic cutlery are most likely to be most acceptable for a child, spoons are less dangerous and come in different colors and shapes so childs can get familiar with them and start the learning eating process by themselves, then they are presented with the fork, which also comes in different shapes and colors, this will complement the training for the infant.
Answer:
is there a picture or anything following?
Explanation:
Answer: The answer I would go with C. It is a well - tested explanation
Explanation:
Because....
It could be the first one as well, but I believe this is a better choice because the paragraph shows the person is testing on child development but it also gives a valid explanation, which is the reason why I say the answer is C.
* Hopefully this helps:) Mark me the brainliest:)!!
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