Which two of these statements are true about mammals

the females have mammary glands
the females give birth to live young
they breathe using gills
the endoskeleton is made up of chitin

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

In the presence of oxygen, glycolysis is followed a. the krebs cycle b. lactic acid fermentation c. alcoholic fermentation d. photosynthesis