Cells with a nucleus are called Eukaryotes. Eukaryotic cells also have membranes around the organelles. Cells without a nucleus are called Prokaryotes. Prokaryotic cells do not have membranes around their organelles.
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Blood flow to the heart via the following vessels:
1. superior vena cava
2. inferior vena cava
4. coronary veins/sinus
Cells store energy in the form of Carbohydrates
Answer:
C) The Environment
Explanation:
This is because fossil fuels are carbon based and when burnt release that carbon store in the form of Carbon Dioxide and other gasses. These gasses such as carbon dioxide contribute to factors such as global warming, this is due to the enhanced greenhouse effect. The enhanced greenhouse effect is when the buildup of these gasses gets too high that it causes heat to build up. This happens because heat reflected and given off from the surface cannot escape are atmosphere and is reflected back.