The alveoli. These little air sacs are found on the end of the bronchioles and are the place where oxygen enters the blood and the carbon dioxide leaves.
Answer:
round worms reproduce sexually
the nervous system of a roundworm contains a brain and nerve cords
It is (D) Carbon dioxide.
in lactic acid=C6H12O6 to produce 2C3H6O3+Energy.
in alcoholic fermentation=C6H12O6 to produce 2C2H5OH+2CO2.
therefore all of them produce (D) Carbon dioxide.
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
Animal cell structures and organelles interact as a system to maintain homeostasis by making sure each part of the system works together.
