During development in __________, the blastopore develops into the anus and the mouth is secondarily derived

A) Molluscs
B) Annelids
C) Arthropods
D) Echinoderms

Fill in the blank with the correct answer.


Answer: D

Anatomy & Physiology

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Osmolarity is expressed in ____________________

Fill in the blank(s) with correct word

Anatomy & Physiology

Which of the following bones is NOT from the axial skeleton?

A. mandible B. sternum C. os coxa D. atlas

Anatomy & Physiology

Which of the following is NOT true of corticospinal fibers?

A. They may synapse directly on alpha motor neurons. B. They may synapse directly on gamma motor neurons. C. They may synapse directly on interneurons. D. They are collectively sometimes called the extrapyramidal system. E. They may synapse with afferent neurons in ascending pathways.

Anatomy & Physiology

Phosphodiesterase functions

A. as a membrane-bound receptor molecule. B. to inactivate cyclic AMP. C. to attach phosphate groups to enzymes. D. to combine GTP with cyclic AMP. E. activates cGMP.

Anatomy & Physiology