Plain and simple, the answer is Nucleus.
Answer:
here
Explanation:
the more your body is moving and is pumping blood there is in your muscles which start to produce lactic acid
B. the air is thinner, causing more of the Sun's rays to reach the surface.
C. most tropical areas are situated at higher elevations, closer to the Sun.
D. they're surrounded by large bodies of water which reflect sunlight.
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.
Correct answer: Regularly distributed
The territorial animals like spiders are expected to regularly distributed. It is the way by which they could keep their territory because if they clustered together then it might that they all get killed at once and may lose territory. So, to prevent this they are regularly distributed and are able to fight predators and intruders and keep their territory safe.