Which of the following is an example of complex system one with many parts and many variables

A food chain

B a simple machine

C a diagram

D the atmosphere

Restless tectonic plates move (shift) between one and 15 cm per A. Year B. Month C. Day D. Minute

Air, water. plants and animals are blank resources because they can be replaced in what

Select all the correct answers. Darwin collected and studied many specimens to understand natural selection on the Galapagos Islands. Which organisms did he study while he was there? Lion Bird Pecock Turtle

What part of the nervous system do the nerves in your skin belong to?

1. Why is it important to have a basic understanding of chemistry in order to understand biological processes?

How can we use rocks to determine how an area used to look in the past?

What type of bonds connect the deoxyribose sugars to the phosphate group?

What are proteins made up of?

What are at least 5 important words associated with the water cycle? What do they mean? Why are they important?

Which of the following organisms is NOT a protist? a. water molds c. Amoebas (protozoans) b. Escherichia coli d. Diatoms (algae)