During extended, intense exercise, a person begins to tire and breathe heavily. If this person continues to exercise, his muscles will soon switch from a) aerobic respiration to anaerobic (alcoholic) respiration

b) anaerobic (lactic acid) respiration to aerobic respiration

c) anaerobic (alcoholic) respiration to aerobic respiration

d) aerobic respiration to anaerobic (lactic acid) respiration

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.

The table above shows five different types of chromosomal abnormalities that can occur during meiosis. they result in either an individual having too many or too few chromosomes in their genome. what is the most likely cause of these chromosomal abnormalities?