It indicates that our ancestors had a different build than humans of today.
Answer:
The job of both red blood cells and root hair cells is absorption. Red blood cells absorb oxygen through pulmonary veins and their capillaries in the lungs. Root hair cells, on the other hand, absorb water from the soil and transport them to adjoining cells for photosynthesis purposes.
George Mendel chose to use purebred plants in his experiments because they have a variety of traits.
Answer:
Respiratory system and circulatory system.
The respiratory system allow living things to obtain oxygen from the air while the circulatory system allows oxygen to be carried around the body.
C. Lactic acid fermentation