Which statement about the redwall limestone layer is true? a. it is younger than supai group and hermit shale. b. it is older than muav limestone but younger than bright angel shale. c. it is older than muav limestone and bright angel shale. d. it is older than supai group but younger than muav limestone.

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

Groups of organisms with low biotic potential, such as gray whales, that produce at most one offspring every other year a) are r-selected b) are k-selected c) are not subject to density-dependent limiting factors d) show the initial stages of the extinction process e) have escaped from the processes of natural selection and adaptation

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes