What type of organic molecule are enzymes? (proteins, lipids, carbohydrates, or nucleic acids)

The picture shows a location in india that is very dry and arid. notice the tall mountains in the background; you can find high amounts of vegetation on the other side of the mountains. which statement is most likely true for this area?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

The diagram shows a chicken embryo and a human embryo