Which of the following might a scientist cite as a reason for the Cambrian explosion? A. Lower oxygen levels in the oceans.
B. Heightened diversity of fossils.
C. Heightened availability of minerals in the oceans.
D. Lowered predation leading to better survival of species.

Which sequence represents a cross section of the bilayera hydrophilic head, hydrophobic tail, hydrophobic tail, hydrophilic headb hydrophobic tail, hydrophilic head, hydrophobic tail, hydrophilic headc hydrophobic head, hydrophilic tail. hydrophilic tail, hydrophobic headd hydrophilic tail, hydrophobic head, hydrophobic head, hydrophilic tail

In attempt to solve the working problems created by the industrial revolution, the united states and many countries in europe considered and/or adopted

Drag each label to the correct location on the table. each label can be used more than once. decide whether each statement describes saturated fat, unsaturated fat, or both saturated and unsaturated fats.