¿Qué características crees que deben tener los métodos anticonceptivos para ser eficaces en el control de la natalidad?

Whay is the following best defines climate

Control of the body is accomplished by which of the following body systems? nervous system and circulatory system endocrine and repertory system circulatory and respiratory systems nervous system and endocrine systems

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)