A toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.
<span>Its just what their diet is made of, meat, mainly other fish. So if there is blood around, there is probably food around.
Same thing with your favorite food.
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A short chain of the cyanobacterial cells found in the Bitter Springs Chert in northern Australia (about 1 billion years old). The bulk of modern genera really resemble cyanobacteria that are closely related to those that are living today. Unlike this fossilized cyanobacterium.
The fact that microorganisms can even leave fossils may surprise you. The oldest cyanobacteria-like fossils, which are among the oldest fossils ever found, are from the Precambrian, but one specific type of bacterium, the cyanobacteria or "blue-green algae," has left a fossil record that extends all the way back to that time. Larger than other bacteria, cyanobacteria have the ability to produce a thick cell wall. More crucially, cyanobacteria have the ability to form enormous, layered structures known as stromatolites or oncolites, depending on whether or not they resemble domes (if round).
Learn more about cyanobacteria, here
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Answer: Option A
Explanation:
Plants intake the carbon dioxide that is present in the atmosphere. They absorb it and along with water and other materials in the presence of sunlight is converted into chemical energy.
This chemical energy is glucose and the by-product that is released by splitting of water into oxygen and hydrogen ions is released into the environment.
This oxygen is required for the process of cellular respiration.