ACA Week 1: Speciation and System Interactions

Front

What are the two systems that allow organs to contract and push food through?

Back

Muscular and Digestive systems.

Front

What type of speciation occurs when a new river forms and splits two populations?

Back

Allopatric speciation.

Front

Why is the maintenance of homeostasis important to multicellular organisms?

Back

They must keep their internal environment within a narrow range of conditions.

Front

What best describes punctuated equilibrium?

Back

Speciation occurs suddenly and rapidly in geologic time, followed by long periods with little evolutionary change.

Front

The emergence of new rivers or streams is a type of ____________ isolation.

Back

Geographic isolation.

Front

Define speciation.

Back

The process by which new species arise from existing species.

Front

What is allopatric speciation?

Back

Speciation that occurs when populations are geographically isolated from each other.

Front

What is sympatric speciation?

Back

Speciation that occurs without geographic separation, often through behavioral or temporal isolation.

Front

Explain the concept of homeostasis.

Back

The ability of an organism to maintain a stable internal environment despite external changes.

Front

What role does the muscular system play in digestion?

Back

It contracts to move food through the digestive tract.