You should wear safety glasses, point test tube away from people, heat tube at an angle, etc.
Answer:
The first number, called systolic blood pressure, measures the pressure in your blood vessels when your heart beats. The second number, called diastolic blood pressure, measures the pressure in your blood vessels when your heart rests between beats.
Explanation:
Answer:
Industrial
Explanation:
Industrial is generally used to description under the term of <em>industry</em>, which would imply that people worked with the necessary things within that said industry, generally involving equipment, produced in factories.
Note however, that while factories fall under industrial, industrial includes more than just factories.
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Endosymbiosis is the idea that certain organelles found in eukaryotic cells today, like mitochondria and chloroplasts were originally separate organisms which were absorbed into early eukaryotic cells and had a symbiotic relationship with them. Over time, they evolved along with the cells until they were fully part of the cell and no longer self-sufficient organisms.
The best piece of evidence for this theory is that chloroplasts and mitochondria have their own DNA, which is different than the DNA stored in the nucleus. This makes sense since they would have needed their own genetic material when they were independent organisms. Today, though, much of the genetic code controlling mitochondria and chloroplast production and activity has been incorporated