No, viruses are not alive because they rely on a host organism to be able to reproduce.
2. reproduction
3. chloroplast
4. Both plant cells and animal cells have flexible plasma membranes.
5. mitochondrion
6. It helps recognize other cells.
7. It helps unicellular organisms move.
8. Root cells obtain energy through the process of cellular respiration which occurs in the mitochondria. The energy produced in the mitochondria is used by the cells for various functions and growth.
9. Animal cells do not require a cell wall because they are surrounded by a flexible plasma membrane which provides adequate protection and support. The plasma membrane is able to change shape and movement, allowing the animal cell to move and interact with its environment. Additionally, animal cells obtain their shape and structure through the cytoskeleton, a network of protein fibers. The central vacuole, which is present in plant cells, is not present in animal cells as they do not need to store large amounts of water. Instead, they have small, membrane-bound vesicles that serve specific functions.
10. Amoeba, being a unicellular organism, digests its food by surrounding and engulfing the food particles with its pseudopodia. The food is then broken down inside the cell through cellular respiration. In contrast, a mouse, as a multicellular organism, has specialized organs such as the mouth, esophagus, stomach, and small intestine for digestion. These organs work together to mechanically and chemically break down food, with the help of digestive enzymes, before it is absorbed into the bloodstream for cellular respiration.