The correct option is this: PLANTS NATURALLY GROW TOWARD A SOURCE OF LIGHT.
Darwin carried out an experiment in which he found that when the tip of a plant is covered with an opaque material, the plant grow up straight but when it is covered with a transparent material that allow light, the plant bend toward the source of light. He thus, concluded that the tip of the plant is responsible for sensing light which is needed for photosynthesis.
egg whites
While it may seem daunting, a basic meringue is nothing more than a mixture of beaten egg whites and sugar.
Its d) Atmosphere .....))
Proteins<span> are large, complex molecules that play </span>many<span> critical roles in the body. ...</span>Proteins<span> are made up of hundreds or thousands of smaller units called amino acids, which are attached to one another in long chains. There are 20 different types of amino acids that </span>can<span> be combined to make a </span>protein<span>.</span>