What does gastrulation accomplish? [A] It changes a gastrula into a blastocyst.

Question

What does gastrulation accomplish? [A] It changes a gastrula into a blastocyst. [B] It changes a hollow embryo into a solid gastrula. [C] It changes the solid blastocyst into a hollow embryo that has three tissue layers. [D] It stimulates labor. [E] It changes the hollow blastocyst into a hollow embryo that has three tissue layers. If one of the blastomeres is removed from a developing mouse embryo, the remaining cells win still develop into a normal mouse. This is an example of [A] regulative development [B] the zone of polarizing activity. [C] cleavage [D] gastrulation [E] ingression. Which statement about gastrulation is true [A] In frogs, gastrulation begins in the vegetal hemisphere. [B] In sea urchins, gastrulation produces the notochord. [C] In birds, cells from the surface of the blastodisc move down through the primitive groove to form the hypoblast. [D] In mammals, gastrulation occurs in the hypoblast. [E] In sea urchins, gastrulation produces only two germ layers. The process of is the shaping of differentiated cells into the multicellular organism and its organs [A] determination [B] totipotency [C] morphogenesis [D] induction [E] competence Primary germ layer that gives rise to sensory ganglia [A] ectoderm [B] endoderm [C] mesoderm [D] trophoderm [E] none of the above If cells from the presumptive neural ectoderm of a frog gastrula are transplanted onto the surface of a second gastrula where skin would normally develop, the transplanted cells will still develop into tissues of the nervous system. From this experiment, we can say that the transplanted cells are [A] differentiated. [B] totipotent. [C] discontinuous. [D] determined [E] endodermal.

Explanation / Answer

35) It changes solid blastocyst into hollow embryo that has three tissue layers

36) regulative development

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.