Jorge made a model of a cell in a clear plastic zipper bag. he used a plum for the nucleus and kidney beans for mitochondria. why is this model for learning about cells? a. it is made of the same materials as a real cell. b. it can function like a real cell. c. it contains all the same parts as a real cell. d. it is larger than a real cell.

The model of the cell prepared here is much bigger than the real cell which is microscopic. So its helpful for studying the structures of the real cell.

Option D.

The cell is defined to be the structural and functional unit of an organism. The cell contains different organelles that remain covered in one place i.e demarcated by cell membrane. Inside it there are different organelles like nucleus, mitochondria, ribosome, golgi bodies, lysozome etc. The sizes of these organelles are different. All these organelles are microscopic which makes the visualization of these organelles difficult. So making a model with comparative sizes and structures makes the studying easy for them. Thus this model is very helpful.

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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