Why do scientific theories change over time?

Choose the best answer.

A. new technologies are developed

B. new discoveries are made

C. new research is conducted

D. all of the above

How are lipids formed? Identify the process

Would you be more likely to find reindeer near the arctic or the antarctic circle

Which phylum is most closely related to the arthropods?

Identify the items below that can cause illness. Check all that apply. water viruses, such as those that cause the common cold bacteria, such as E. coli coughing on a person when you are sick forgetting to wash your hands eating contaminated food

Which of the following has the smallest number of cells? blastocyst zygote fetus embryo

According to Herbert Kaufman, which of the following are reasons health care workers commonly resist change?

Which of the following is an example of and std caused by a virus

How are island archipelagos also called island arcs formed.

What is the state in which particles or a substance are mixed with fluid but are undissolved

How many significant figures should the products 62.25 37.4 have