The time span that a species exists can be seen as a "column" extending through the rock layers. Once a species becomes ,
it disappears from the fossil record
and this column ends.

A) extinct
B) endangered
C) fossilized
D) burled

The specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require ll calories to raise the temperature 1°c. 05

Identify the composition of oceanic and continental crystal rocks. in a model of earth’s interior, where would these rocks appear?

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time