Aperson is born with an extra copy of chromosome 21, what type of mutation has occurred? a. dna mutation b. frameshift mutation c. somatic cell mutation d. non-disjunction mutation

Which best describes the scientific process

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

Which type of respiration takes place when there is no oxygen present