Systematic separation of the circulation of the blood. The right side of the heart receives oxygen-poor blood from your body and pumps it to the lungs. The lungs oxygenate the blood which returns to the heart and is pumped to the rest of the body by the left side of the heart. After which the blood returns to the right side, completing the cycle of circulation.
Answer:
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A. In prophase I, tetrads of homologous chromosomes form and crossing over occurs
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Answer:
None of these options is correct.
Explanation:
As in first option animal show herbivorous behaviour by eatin plant as well as in second option plant is toxic for animal .
while symbiosis is a process in which two animals stay together to harm each other or to help each other or for some other conditions but in these options there is no such situation here.
