<span>Four laws or principles are involved with the study of stratigraphy. They are </span><span>law of original horizontality, </span><span>law of superposition, law of original lateral continuity, and </span>law of cross-cutting relationships
Answer:
ocean productivity largely refers to the production of organic matter by "phytoplankton"plants suspended in the ocean most which are single - celled
<span>b The growth of teeth in chickens supports the hypothesis of a common ancestor between birds and reptiles. This is a generally accepted hypothesis, and i'd go with this answer. Obviously we can't say whether chickens will have teeth with certainty, the chickens with teeth are clearly still chickens, and a baby croc isn't hatching out of a chicken egg any time soon.
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B because the diploids always line up in the middle on chromosomes
C. in the thylakoid membrane
have fun in bio :)
