26. which of the following is true regarding the electron transport chain step of cellular respiration?
a. absolute anaerobic step
c. occurs outside of mitochondria
b. diffusion created h+ gradient
d. nadh/fadh2 used as energy

Which of these statements are true about scientific theories and hypothesis

Consider the classification levels of a human. eukarya ,animalia ,chordata ,mammalia ,primates, hominidae ,homo ,sapiens .which is the most specific taxonomic level in the classification system above? a sapiens b homo c hominidae d primates

Describe the relationship and movement between temperature and density in a convection cell. make sure you identify the direction of travel