The two objects shown are made of the same element. What else is true of both objects?

A. They are made of only one kind of atom.
B. They have the same shape.
C. They have the same mass.
D. They have the same number of atoms.

help plz

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?

What is the one part of the nucleotide  that differs among the other different nucle  tides?