When the embryonic mass of cells develops an internal cavity, the mass of cells is called a/an ________.

A. embryonic disc
B. blastocyst
C. zygote
D. trophoblast
E. morula


Answer: B

Anatomy & Physiology

You might also like to view...

Which of the following is NOT a role of connective tissue?

A. insulation B. protection C. support D. absorption

Anatomy & Physiology

If acetylcholine binds to muscarinic receptors,

A. Na+ channels open. B. Ca2+ channels open. C. adrenaline is released. D. G proteins mediate the cell's response. E. the response is neither excitatory nor inhibitory.

Anatomy & Physiology

The bar- and platelike tissue of spongy bone is called ________.

A. flagellite B. osteocytes C. osteon D. trabeculae

Anatomy & Physiology

The acidity of sweat contributes to the acid mantle that inhibits bacterial growth in the skin.

Answer the following statement true (T) or false (F)

Anatomy & Physiology