The correct answer is that it's most luminous when it is a giant star. A giant star has bigger luminosity than a dwarf of a main sequence star (sun is one) of the same surface temperature
Carbon found within limestone
The digestive system uses mechanical and chemical methods to break food down into nutrient molecules that can be absorbed into the blood. Once in the blood, the food molecules are routed to every cell in the animal's body.
<span>Cilia, flagella, and centrioles. Cilia and flagella are projections from the outside of the cell. They are made up of microtubules and are covered by an extension of the plasma membrane. They are motile, meaning that they are mobile, and designed either to move the cell itself or to move substances over or around the cell.</span>
Answer:
Los componentes básicos del ADN son los nucleótidos, que se componen de tres partes: una desoxirribosa (azúcar de 5 carbonos), un grupo fosfato y una base nitrogenada (Figura 9.3). Hay cuatro tipos de bases nitrogenadas en el ADN.