The appropriate response is a pigment component. Pigment are in charge of a large portion of the lovely hues we find in the plant world. Colors have frequently been produced using both creature sources and plant separates. A portion of the colors found in creatures has likewise as of late been found in plants.
I’m pretty sure it’s duplication, it even says so on the picture of the chromosome :)
Answer:
Maya astronomer-priests looked to the heavens for guidance. They used observatories, shadow-casting devices, and observations of the horizon to trace the complex motions of the sun, the stars and planets in order to observe, calculate and record this information in their chronicles, or "codices".
Explanation:
<span>a. they counteract low venous pressure, and prevent backflow of blood away from the heart - Venous valves are structures that are made of elastic tissue. The valves are there to ensure that the blood keeps moving in one direction. The veins use these valves to work against the effects of gravity as well as low pressure with the veins.
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