Families I think, pretty sure
This may help you...
Infectious diseases<span> are those that are </span>transmitted<span> from person to person by direct or indirect contact. Viruses, bacteria, parasites, and fungi all cause infectious </span>disease<span>. Malaria, measles, and respiratory illnesses are examples of infectious </span>diseases<span>.</span>
Answer: Growing a beard in males is an example of a sex-limited trait.
In broad terms, finches. In specific terms, he observed how over time, the beak sizes and shapes of said finches changed to adapt to the food sources available.
I hope I was able to help. Best of luck.
Answer;
Gold
Gold is a non renewable resource.
Explanation;
Non renewable resources are those resources of economic value that can not be readily replaced by natural means on a level that is equivalent to its consumption.
Examples of non renewable resources include; fossil fuels such as oil, natural gas and coal; because their source is not sustainable.