Imagine That You Wanted to Know If Speciation Is More

question 31

Multiple Choice

Imagine that you wanted to know if speciation is more rapid in plant groups pollinated by bees or hummingbirds. To do this, you identified 20 genera of angiosperms that contained species pollinated by both types of animals. There were substantially more species in the groups that were pollinated by bees. What conclusions can you draw from your data?

• A) Hummingbirds promoted speciation more than did bees.
• B) Hummingbirds promoted speciation less than did bees.
• C) Each genus should be split into two new genera.
• D) The rates of speciation were similar in groups pollinated by hummingbirds and bees.

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Definitions:

Manufacturing Activities

Tasks and processes involved in converting raw materials into finished goods, often including assembly, fabrication, and quality control.

Time Variance

The difference between the actual time taken to complete a task and the estimated time planned for it.

Direct Labor Hours

The total number of hours worked directly on a product or service by employees, usually used to allocate manufacturing costs.

Price Variances

Differences between actual and expected or standard costs that are attributed to changes in the price of goods or services.