A. Mitochondria and chloroplasts are found inside all cell types. B. Mitochondria and chloroplasts each have a membrane around them just like a cell would.

C. There are ribosomes found inside mitochondria and chloroplasts just like there are Inside cells.

D. Looking inside mitochondria and chloroplasts , one will find that they each contain their own DNA .

B, C and D

Explanation:

Mitochondria and chloroplasts are not found in prokaryotes, since they prokaryotes do not contain any membrane-bound organelles. Chloroplasts are not found in animal cells either, so A is incorrect.

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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