Inside each of your lungs there are tubes called bronchi. these branch into even smaller tubes much like the branches of a tree. what are at the ends of these tubes?

Match the digestive enzymes to the macro molecules they to digest. down fats into glycerol and fatty acids down carbohydrates into simple sugars down nucleic acids into nitrogenous bases and simple sugars down proteins into amino acids

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16