Which of the Following Did Not Occur in Both the Protostomes

question 18

Multiple Choice

Which of the following did not occur in both the protostomes and deuterostomes?

• A) Evolution of structures for filtering food from water
• B) Evolution of wormlike burrowing forms
• C) Evolution of adaptations needed for invasion of the land
• D) Evolution of large terrestrial species
• E) Evolution of jointed appendages for improved locomotion

Understand the impact of linguistic styles on social perceptions.

Recognize the role of context in language learning and usage.

Identify factors influencing inter-ethnic language behavior.

Explain the importance of communication in social interactions.

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Definitions:

Sarcomere

The basic contractile unit of muscle fiber, consisting of actin and myosin filaments between two Z lines.

Z Disk

Delicate, membranelike structure found at each end of a sarcomere to which actin myofilaments attach.

T Tubule

T Tubules, or transverse tubules, are extensions of the cell membrane that penetrate into the center of skeletal and cardiac muscle cells, playing a crucial role in muscle contraction.

Sliding Filament Model

A theory describing the mechanism of muscle contraction, where actin and myosin filaments slide past each other to shorten the muscle fiber length.