True or false: The scientific method is a cycle. If your experiment does not support your hypothesis, you should change your hypothesis and try again.

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

An example of internal feedback working to maintain homeostasis is your a. decreased respiration rate when you are studying b. decreased heart rate when you are sad c. increased respiration rate when your muscles need more oxygen d. increased heart rate when your lungs need more oxygen

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above