PLEASE HELP!! What is one reason the heliocentric model was not accepted until 1600s?
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-Ancient astronomers could not see Jupiter.

-Ancient astronomers could not see stellar parallax.

-Ancient astronomers could not do math.

-Ancient astronomers could not recognize any planets.

What class of levers is shown in this image?

The table below shows data for a population of fish in a pond. fish body color # of fins scales? tail shape a silver 4 yes fan b pink 4 yes flat c black 4 yes fan d orange 4 yes flat e orange 4 yes fan f silver 4 yes flat which of the above characteristics would be most in developing a classification system for the fish? a. body color and tail shape b. presence of scales and tail shape c. body color and number of fins d. number of fins and presence of scales

Which of these would most likely be a stimulus that would cause the body to initiate feedback mechanisms a.) normal body temperature in an arctic environment b.) normal boy temperature in a tropical environment c.)light physical activity d.)low blood sugar