The Most Ancient Branch Point in Animal Phylogeny Is That

question 29

Multiple Choice

The most ancient branch point in animal phylogeny is that between having

• A)radial and bilateral symmetry.
• B)a well-defined head and no head.
• C)true tissues and no tissues.
• D)a body cavity and no body cavity.

Understand anatomical directional terms and be able to apply them to different animals.

Identify the organs located in various body cavities (neck, thoracic, abdominal).

Know the number of organ systems in the human body and their functions.

Understand the functions of different body systems (digestive, respiratory, endocrine, nervous, cardiovascular, integumentary, skeletal, lymphatic).

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Definitions:

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Pertaining to the central government, as opposed to state or local governments, especially regarding its relationship with the states in a federal system of government.

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The amount of an individual's income that is subject to taxation after all deductions and exemptions, according to the governing tax laws.

Taxable Income

The portion of an individual's or entity's income used to calculate how much tax they owe to the government in a given tax year.

Deductions

Amounts that can be subtracted from total income for tax purposes, effectively reducing the taxable income.