Indicate the differences between protostomes and deuterostomes.

What will be an ideal response?


Protosomes are animals whose blastophore in the gastrula stage of development becomes a mouth; the anus develops later. In deuterosomes, the blastophore becomes the anus. There are additional differences in the development and the formation of the coelem.

Biology & Microbiology

You might also like to view...

Match the following items with the correct phrases.

_______1. Organisms that prefer salty environments are called ____________________. _______2. Organisms that have especially demanding nutritional requirements are called ____________________. _______3. Organisms that prefer environments having decreased concentrations of oxygen are called ____________________. _______4. Organisms that prefer refrigerator temperature are called ____________________. _______5. Organisms that grow best in environments containing increased concentrations of carbon dioxide are called _______________. a. capnophiles b. fastidious organisms c. halophiles d. microaerophiles e. psychrotrophs

Biology & Microbiology

Asexual reproduction in fungi can be accomplished by

A. budding of somatic vegetative cells. B. binary fission. C. hyphal fragmentation. D. All of the choices are correct.

Biology & Microbiology

Trace the correct path in the endomembrane followed by a protein, beginning with its site of synthesis in the rough

ER.

a. rough ER ® smooth ER ® Golgi complex ® plasma membrane b. rough ER ® Golgi complex ® vesicle ® plasma membrane c. rough ER ® vesicle ® lysosome ® plasma membrane d. rough ER ® vesicle ® smooth ER ® plasma membrane e. rough ER ® smooth ER ® lysosome ® plasma membrane

Biology & Microbiology

To include your eyes and ears in the same section, you would need to cut your body in which plane?

a. median b. frontal c. sagittal d. transverse e. cephali

Biology & Microbiology