<u>B. the pseudocoelom that acts as a hydro skeleton</u> causes the characteristic thrashing motion of nematodes.
- The longitudinal muscles of nematodes are contracted to move them. The animal moves by thrashing back and forth because to the tremendous internal pressure that forces the body to flex rather than flatten.
- Nematodes only have longitudinal muscles, not the two bands of muscles found in other worms.
- They can only move by clenching the lengthy muscles on either side of their body and wiggling forward, which explains their distinctive thrashing motion.
- The pseudocoelom serves as a lubricant between tissues, houses coelomocytes, and generates turgor-hydrostatic pressure for the entire animal.
- Because it is fluid-filled, the fluid's hydrostatic qualities enable a more rigid construction, greatly improving the efficiency of the skeletal system and movement.
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Answer: Anti-diuretic hormone also known as vasopressin and Aldosterone
Explanation:
They both act on the kidneys to exert their effect.
Anti-diuretic hormone acts on the kidney to regulate Urine volume, thus causing the kidney to reabsorb water from the urine.
Aldosterone acts on the kidneys to increase sodium retention. Increased sodium retention leads to increased water retention.
Answer:
A Blood flow tends to be faster in arteries than in veins.
Explanation:
Veins and arteries are both blood vessels i.e. conducts blood in the circulatory system. As rightly said in the question, the walls of the arteries are thicker and stronger than that of veins in order to be able to withstand the high pressure of blood that flows into it from the heart. The veins, on the other hand, has a lower blood pressure since blood flows back into the heart.
Based on this fact that blood flows forcefully i.e. high pressure, out of the heart into the arteries, blood will flow faster in the arteries i.e. with high speed which is responsible for the high pressure that the blood exerts on its wall.
Answer:
B.
Explanation:
A tumor is essentially when damaged cells continue multiplying. So by smoking your risking both damaging your cells and turning of the p53 gene.
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Moro. The reflex is called the Moro Reflex.