A Rocky Shoreline That Is Covered at High Tide but Exposed

question 41

Multiple Choice

A rocky shoreline that is covered at high tide but exposed at low tide supports a community of mussels,algae,barnacles,and starfish.An ecologist systematically removes species from different areas of the beach.Removing the mussels or the barnacles doesn't substantially change the community,but removing the starfish dramatically changes the mix of species in the area.Which is the keystone species?

• A) mussels
• B) barnacles
• C) algae
• D) starfish
• E) All of the answers are correct.

Understand the interaction between nature and nurture in development.

Identify and compare different theories and theorists in developmental psychology.

Recognize the importance of diverse cultural and socioeconomic backgrounds in developmental research.

Differentiate between stage theories and incremental theories of development.

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Definitions:

Unconditional Promise

A firm commitment or pledge not subject to any conditions or contingencies.

Transferee

An individual or entity that receives property, rights, or interests from another through a legal transfer process.

Endorsement

The act of signing the back of a negotiable instrument, which allows for the transfer of rights from one party to another or specifies particular conditions of transfer.

Conditional Endorsement

An endorsement on a negotiable instrument that imposes conditions on the use or payment of the instrument.