Modern behavioral concepts relate the cost of a behavior to its benefit. Under which relationship might a behavior be performed?

A) cost is greater than the benefit

B) cost is less than the benefit

C) cost is equal to the benefit

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#Question id: 17668

#Unit 9. Diversity of Life Forms

The most recent common ancestor of all land plants was probably similar to modern-day members of which group? 

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#Question id: 17669

#Unit 9. Diversity of Life Forms

Use the letters A-D to label where on the phylogenetic tree each of the following derived characters appeared. 

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#Question id: 17670

#Unit 9. Diversity of Life Forms

The following are common to both charophytes and land plants except 

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#Question id: 17671

#Unit 9. Diversity of Life Forms

Protection from predators 

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#Question id: 17672

#Unit 9. Diversity of Life Forms

Protection from desiccation

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#Question id: 17673

#Unit 9. Diversity of Life Forms

transport of water, minerals, and nutrients