What type of succession takes place when there is no existing biotic community or soil to begin with?

a. primary succession

b. secondary succesion

c. tertiary succession

d. none of these

A food label for one of your favorite snacks claims that the food contains only polyunsaturated fats. What can you infer from this claim? Responses A. The fatty acids of the lipid molecules in the food contain more than one double bond. B.

The physical, chemical, and biological laws that operate today also in geologic past. This statement relates to the principle of?

The endosymbiotic theory proposes that mitochondria and chloroplasts evolved as a result of which cellular process? A. symbiosis B. phagocytosis C. endosymbiosis D. photosynthesis

Using one of the five senses to gather new data is the scientific process of: A. making a decision. B. forming a hypothesis. C. making a observation. D. drawing a conclusion.

The roll of the cell membrane is most like the job of which person

Which is the best evidence of an evolutionary relationship between two organisms?

Mt. Aconcagu is the highest peak of which range

Members of Porifera are diploblastic. Which statement clarifies this? A. They are unsegmented. B. They have a true body cavity. C. They have two germ layers.

In what part of the cell does glycolysis take place

Geological evidence indicates that two landmasses, separated by a deep ocean channel, have been moving apart since 45 million years ago. You are studying a group of organisms that has widespread populations on both of the landmasses.