It is twisted to create a greater surface area for digesting and to increase the nutrient absorption.
Dna has some stufff more important than what rna has gotten
the distance between genes on the same chromosome is the answer for sure
Answer;
A. the Sun's rays are nearly perpendicular to Earth's surface.
Explanation;
-Tropical region receives more solar radiation not only because the Sun’s rays hit the region more directly, but also because they travel through less of the atmosphere to get there.
-Some radiation is absorbed as it travels through the atmosphere, so less energy is lost in tropical regions.