Answer:
All the arteries except pulmonary artery carry pure blood..it is so because blood flows with a high pressure and speed And because Arteries are situated deeper under the skin have thick-walled with Narrow lumen(cavity) and pulmonary artery carries deoxygenated blood i.e without oxygen..
Explanation:
lumen means Empty space within an object(solid)
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Answer:
1. G 2. B 3. D 4.F 5. C 6.E 7. A 8. H
Explanation:
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A. dermal tissue inhibits water loss.
Answer: Tissue that carries messages throughout our bodies is called nerves. Nerves conduct electrical impulses between the brain and brain stem to all parts
Answer:
The correct answer is - power step-ups.
Explanation:
Power step up is an exercise that involves an individual to stand upright and lift ur chest and tuck chin in. Put one leg on box or step and forcefully push that leg into the air and put the leg softly on the box or step and again push this leg now in air forcefully and softly put another leg on the box, repeat this again and again.
This exercise helps to keep the knee in line with the toe through the jumping of landing and take off.
Thus, the correct answer is - power step-ups.
