An example of a 3rd class lever is a pair of tweezers!
They have a cell wall and nucleus but they have no membrane-bound organelles like eukaryotic cells
Plants make their own food by a process called Photosynthesis. ... Photosynthesis is done with the help of carbon-dioxide, water, and sunlight. The end products of photosynthesis are oxygen, which the plants release, and carbohydrates, which become the plants' source of energy
Hydrogen (62.9%), oxygen (almost 24%), carbon (nearly 12%), nitrogen (nearly 0.6%), calcium (0.24%) and phosphorus (0.14%).
Answer:
Among the oldest methods of preservation are drying, refrigeration, and fermentation. Modern methods include canning, pasteurization, freezing, irradiation, and the addition of chemicals.
Explanation:
