Answer: b
Explanation:
forming a waterproof covering on feathers, leaves, and fruit.
Answer: I don't have a definitive answer for this question but I do have a helpful explanation.
Explanation: Try to find out what each letter means and organize the elements by how they connect to each other. If you don't know you can research to find a diagram that can help show you how to connect these functional elements. You could try searching how do you find the elements of HOH in a diagram.
There is 20 chromosomes in a adult wild mouse
Such direct observational evidence is limited, however, and clouds remain the biggest source of uncertainty--apart from human choices to control greenhouse gases—in predicting how much the climate will change
