Why are planets closer to the sun made of different substances than planets farther from the sun?
- why do some planets appear to move backward in the sky?
- how do the planetary systems discovered?
- what are kepler’s laws of planetary motions?
- what are newton’s laws and how do they apply to a planetary system?
- what are some ways that the motions of the earth, moon, and sun influence each other?

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.

Will mark you as ! keiko’s teacher was discussing the theory of endosymbiosis. she asked keiko to mark the organelles in the diagram that most closely resembled prokaryotes. which organelles should keiko mark? * the first image is the question and the second image is some information to you answer the !