Changes in a population of elk are shown in the graph below. What is best represented by the letter X?
A:The average life span
B:Extinction
C:Biodiversity level of the habitat
D:Carrying Capasity

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

Any sound above what db can cause hearing loss in human beings

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are