The best answer is A.) They can poison soil organisms, because pesticides contain chemicals that can be dangerous to plants.
Answer:
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Endosymbiotic theory states that some organelles found in eukaryotic cells arises from prokaryotic cells.</h2>
Explanation:
The Endosymbiont theory proposed that mitochondria and chloroplasts evolved from some bacteria that were ingested by primitive nucleated cells. Chloroplast and mitochondria have characteristics similar to bacteria. They divide by binary fission as well as contain single circular DNA and 70s ribosomes found in prokaryotes. It was believed that mitochondria had evolved from some proteobacteria and chloroplast has evolved from cyanobacteria.
An organism is d. a group of organ systems working together.
An atom goes into a molecule which goes into a cell which goes into a tissue which goes into an organ which goes into an organ system which goes into an organism.
Organs working together with other organs create a system of organs or an organ system. Something like this helps keep a human body, for example, functioning since everything relies on each other.
Remember that if your respiratory (breathing) system and nervous (brain) system did not work together, you would not be alive, and therefore no longer a living organism.