The Phanerozoic eon began at the same time as which of these? Select all that apply.

A. the start of the Paleozoic era

B. the start of the Cambrian period

C. the end of the Proterozoic eon

D. the start of the Precambrian super-eon

A layer of sandstone is found on top of a layer of shale. what most likely happened in this area? a. sea level stayed the same b. sea level dropped c. sea level rose

Heart tissue dies during a myocardial infarction (MI), and a person's survival and recovery depend on the extent of cell death and the chamber (s) involved. In which chamber would the loss of function be most damaging to survival?

What can i do to know what makes paper plane the farthest?

An organism has these traits: unicellular can't photosynthesize contains DNA in nucleus Which group does this organism belong to? A. archaea B. eukarya C. protista D. animalia

Cystic fibrosis is an inherited genetic disorder caused by two copies of a defective recessive gene that causes A) senility at around age fifty and slow nervous system damage. B) the buildup of fluid in the lungs, and complications from pneumonia.

What is the dynamo effect

Color blindness is an example of the following

What is the main function of lipids in biological organisms?

Which tissue is affected by polio?

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