A lot of people did. Including me.
A scientist named Hans Christian Gram made 2 kinds of bacteria that is based on their differences in the cell walls. The gram positive and the gram negative.There are differences on these 2. One of it is that Gram negative are more resistant with antibodies compared to the gram positive. Example of these would be pseudomonas aeruginosa while for the positive would be Staphylococcus. Another difference between the 2 would be for flagellar structure in gram negative have 4 rings while positive has only 2.
Answer:
Plants and other producers generate their own energy, which allows them to grow, reproduce, and live. They are the only living organisms on the planet that can produce their own supply of food energy, which makes them unique. They, of course, require sunlight, water, and air to survive.
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1. Air enters the nostrils.
2. Air passes from the trachea to the bronchi
3. Air diffuses from the alveoli to the blood cells.
4. Oxygen enters the blood cells.
5. Blood transports oxygen to other cells.
