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

The most plentiful gas in the atmosphere is ...

What are the ecosystems

What is the next step toward becoming a law after a bill is introduced in the Senate or the House of Representatives?

Cholesterol belongs to which category of organic molecules?

If an object is 334 micrometers wide, how many millimeters wide is it?

Penny has been diagnosed as suffering from bulimia nervosa. it is most likely that she:

Which term describes the class of molecules that includes starch and glycogen? A. Lipids B. Carbohydrates C. Nucleic Acids D. Proteins

A 60-year-old woman has just been diagnosed with heart failure and her primary care provider is describing the concept of adaptation. which compensatory mechanisms may have masked the client's heart failure? select all that apply.

What are two possible genotypes or the offspring?

A student notices that the saucer below a coffee cup becomes warmer after coffee is poured into the cup. Energy was transferred from - the cup to the saucer by conduction. the saucer to the cup by conduction. the cup to the saucer by convection.