what structure is the pointer pointing to? O Notochord what germ tissues are those structutres made from? O Blastopore -actoderm, andoderm O Somite O Archenteron mesoderm O Blastocoel

What is "ecdysis"? O The outermost covering of an ovum that undergoes external fertilization. O A form of asexual reproduction The act of emerging out of the old cuticle during molting. The transformation of a larva into an adult that looks completely different from the larval form.

17 of 20 Select the phrase which describes the process of coelom formation by schizocoely O Occurs in protostomes and involves mesodermal tissue that is located in the space between the ectoderm layer and the endodermal wall of the archenteron O Occurs in protostomes and involves buding of mesodermal tissue from the archenteron O Occurs in deuterostomes and protostomes and involves migration of neural crest cells around the interior of the ectoderm cell layer O Occurs in deuterostomes and involves differentiation of endodermal tissue into mesoderm which buds from the primitive gut. O Occurs in protostomes and involves rounding-up endodermal tissue which forms the primitive gut lumen

In protostomes [Select] 7 cleavage occurs and it is [ Select ] In addition, in protostomes th v [Select ] determinate develops from the blastopore. radial anus spiral indeterminate mouth

Which ovary is functional in birds?

How many eggs do you think were released by the ovary of a female dogwhich gave birth to 6 puppies?

Match each letter with the corresponding structure for letters A-E. -Sucker -Hooks -Uterus -Proglottids -Genital Pore

Label the image with the word bank and answer the question

What generalizationscan you make aboutthe location ofmesoderm, whenpresent, during andafter development?

The visceral mass of gastropods take a 180 degree turn during development. This causes the anus to be positioned anteriorly. This process is called (parthenogenesis/ eutely/ metamorphosis/ torsion)?