The mass of a star can be determined by studying D) binary star systems.
Although there may be other ways to determine the mass of a star, this is the most common one which is widely used all over the world when it comes to measuring objects in the universe.
Insulin is released into the blood when oxygen levels are low and blood glucose levels are high
Answer:
it's true
Explanation:
if it's dim light the iris will be large
Movement. All living things move in some way. ...
Respiration. Respiration is a chemical reaction that happens within cells to release energy from food. ...
Sensitivity. The ability to detect changes in the surrounding environment. ...
Growth. ...
Reproduction. ...
Excretion. ...
Nutrition.
