How does the magnetic field surrounding earth benefit human kind

If a human has 23 pairs of chromosomes in every muscle cell of its body how many chromosomes will be in a human egg or sperm

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.

This law states that a planet's elliptical orbit around the sun sweeps equal amounts of area in an equal amount of time this means that each planet travels faster near the sun and slower farther from it law of ellipses law of inertia equat areas law harmonic law