The coelom is a fluid-filled cavity that forms completely within the ______ during embryonic development of some bilaterally symmetrical animals.Multiple choice question.ectodermmesodermendoderm

A(n) ______ is a fluid-filled cavity that forms completely within the mesoderm during embryonic development in some animals with true tissues.Multiple choice question.gastrovascular cavitycoelomarchenteronblastula

What is true of coelom development in protostomes?Multiple choice question.The coelomic cavity forms from an indentation of a hollow ball of cells during embryonic development.Groups of mesodermal cells pouch off the end of the archenteron to form the coelomic cavity.Mesodermal cells move apart to form the coelomic cavity.The coelomic cavity develops embryologically between the mesoderm and endoderm.

The body cavity of acoelomates is:Group of answer choicesLined by ectoderm and endoderm only (acoelomates do not have mesoderm)Lined by mesoderm on only one sideAcoelomates do not have a body cavityCompletely lined by mesoderm on all sides Flag question: Question 3Question 3Tips1 p

What is an accurate description of the pseudocoelom?Multiple choice question.It is a body cavity that develops embryologically between the endoderm and ectoderm.It is a body cavity that develops embryologically between the mesoderm and endoderm.It is a body cavity that develops embryologically between the mesoderm and ectoderm.

Several of the bones associated with the nasal cavity have large, air-filled cavities within them called the ______.Multiple choice question.jugular foraminaalveolar processesparanasal sinusesnasal conchae