What's the cause of diversity of protien?

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water