Answer:
Carbon contains four electrons in its outer shell. Therefore, it can form four covalent bonds with other atoms or molecules.
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Answer:
1. C
2. B
Explanation:
1. When a plant cell looses some water due to dehydration or being placed in a hypertonic solution, the term used to describe the cell's intial, not severe shrinkage is 'flaccid'.
Here, it's clear that the cell shrank so much that the cell membrane pulled away from the cell wall. The correct term for this severe shrinkage is 'plasmolysed'.
We don't use 'wilted' as a term to describe a cell. We use it to describe the plant as a whole.
2. This is the function of each. Water and ions in xylem and sugars like sucrose in phloem.
Answer:
Due to stored energy, the ruler moves in forward direction.
Explanation:
When we bent the ruler from its original position, energy is stored in the ruler so when we remove the hands from the ruler so it moves in the forward direction. When the ruler reaches to its original position so due to more stored energy, it moves more forward than its original position and vibrate on its mean position and finally remain at rest after sometime.
Answer:
Life around us
Explanation:
Geology is what studies rocks, Chemistry is what studies chemicals, and Biology is what studies life.