Speciation

question 34

Multiple Choice

Speciation

• A)occurs at such a slow pace that no one has ever observed the emergence of new species.
• B)occurs only by the accumulation of genetic change over vast expanses of time.
• C)must begin with the geographic isolation of a small,frontier population.
• D)occurs when one species splits into two or more species.

Appreciate the relationship between the efficiency of ATP production and the steps of cellular respiration.

Explain the necessity of oxygen in aerobic respiration and the role of fermentation in anaerobic conditions.

Understand the role of chemiosmosis in ATP production.

Identify the importance and outcomes of the preparatory reaction.

---

Definitions:

Method of Concomitant Variations

A research method where one observes the effects of the deliberate variation of one factor on a phenomenon to identify causation.

Necessary Condition

A necessary condition is a condition that must be present for an event or state of affairs to occur; without it, the event or state cannot exist.

Sufficient Condition

A condition or set of conditions that, if satisfied, ensures that a certain statement or outcome must be true.

Method of Concomitant Variations

A scientific principle stating that if two variables vary together in a consistent manner, then one may be a cause of the other.