The cells called perform photosynthesis and cellular respiration.
1. they are the most abundant type of cell in a typical plant body.
2. the cells called die as they mature, forming a rigid skeleton that support a growing plant.
3. are long, thin water-conducting cells with tapered ends.
4. are short, wide water-conducting cells.
5. food-conducting cells called are arranged end-to-end in phloem tissue.

Option 1. i.e. They are the most abundant type of cell in a typical plant body.

Explanation:

Parenchyma cell are cells that are present in plant body to perform cellular respiration and photosynthesis. These type of cell are most easily available cells which present in large amount in any typical plant body.

There are many roles that parenchyma cells may serve. Their work is mainly based on their place in the plant, which can define if they will be used in storage, photosynthesis, or repair damage.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

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