Question

compress the muscles of the face, driving oxygen - enriched blood to giordano said. other proposals state the purpose of yawning is to cool the brain, or to stretch internal organs like tissues and lungs, helping the body to liven up. © newshour productions llc. all rights reserved. use the passage to answer the question. what is the purpose of the transitions “one theory” and “other proposals” in this excerpt? (1 point) ∘ to point out a specific example of a general phenomenon ∘ to draw a contrast between two ideas ∘ to group together explanations to the same question ∘ to show a cause/effect relationship

Explanation:

The transitions “One theory” and “other proposals” are used to present different explanations (theories/proposals) regarding the purpose of yawning. So they group together explanations to the same question (what the purpose of yawning is). The first option is incorrect as they aren't giving a specific example of a general phenomenon. The second is wrong as they aren't contrasting ideas but presenting multiple explanations. The fourth is incorrect as there's no cause - effect shown here.

Answer:

to group together explanations to the same question