Create a letter to someone tell what you're doing social distancing for the coronavirus

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

The cluster of developing cells from conception until birth is called an

Fossils of ancestors of the modern horses show a small 4-toed almost dog-like browsing animal named eohippus over time the horses got larger lost toes and changed to a grazing diet what is the best explanation of why this change occurred