Answer:
The result is that the exhaled air contains less oxygen and more carbon dioxide than the inhaled air. ... In fact, exhaled air is completely saturated with water – it contains the maximum amount of moisture, and is therefore has a relative humidity of 100%. We lose water as we breathe!
Vertebrates have a bilateral symmetry due to which their entire body is divided into right and left halves while the invertebrates either have radial symmetry or the bilateral symmetry. Therefore, option D is correct.
The other basic differences between the vertebrates and the invertebrates are that vertebrates have a spinal cord and a backbone while invertebrates lack them, vertebrates have well developed brain, lungs or gills in respiratory system and closed circulatory system.
Answer:
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Explanation:
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• Which disinfectant kills the most bacteria
• How much bacteria is transfered to your hand when you touch a tap, door, etc.
• Who has more bacteria, males or females
