Answer:
meteorite striking the dinosaures
Answer:
Autotrophs are the organisms which have ability make their own food using various sources of energy. Examples are can green plants and algae such as <em>Spirogyra, Chlorella, Volvox</em> make their food using sunlight carbon dioxide and water. they are photoautotrophs
Some bacteria are also make their food using chemical energy through oxidation. They are chemoautotrophs.
<span> LOOK up Negative Regulations E. Coil
</span>
Answer:
long term heart promblems
long term lungs and liver
Explanation: