Consider the Following Phylogeny of Protostomes

question 109

Multiple Choice

Consider the following phylogeny of protostomes. One of the traits used to describe animals is the type of body cavity (coelom) that is present. According to the phylogeny, how many times did a coelom evolve in protostomes?

• A)one
• B)two
• C)three
• D)four
• E)five

Identify topic sentences and comprehend their significance in structuring paragraphs.

Distinguish examples that do and do not support a general statement or claim.

Comprehend the interaction between substances (like grapefruit juice) and medications and its effects.

Recognize historical instances of censorship and understand the motives behind such actions.

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Definitions:

Midbrain

In mammals, the part of the brain located below the thalamus and above the pons.

Pons

A part of the brainstem that links the medulla oblongata and the thalamus, playing a key role in controlling breathing, communication between different parts of the brain, and sensations such as hearing and taste.

Cerebellum

Part of the brain at the back of the skull that regulates coordination, precision, and accurate timing of movements.

Adrenaline

A hormone and neurotransmitter, also known as epinephrine, released in response to stress, increasing heart rate, blood flow, and energy release.