From outside to inside, an embryo at the end of gastrulation has the following three embryonic tissue layers:
A.
B.
C.
D.
Correct. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers
Incorrect. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers
Animation 43.1 Quiz
In the frog embryo, at the beginning of gastrulation, the _______ is a hollow space that forms as bottle cells begin migrating inward, forming the dorsal lip of the _______.
A.
B.
C.
D.
Correct. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers
Incorrect. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers
Animation 43.1 Quiz
Refer to the figure below.
Each image represents a different stage during gastrulation in a frog embryo. Place the images in correct order of their sequence.
A.
B.
C.
D.
Correct. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers
Incorrect. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers
Animation 43.1 Quiz
During a research study, scientists labeled the ectoderm of a chick embryo with a specific label that was maintained within the ectoderm cells and their progeny through the rest of development. At the end of development, the researchers examined the chick’s body to see which parts contained labeled cells. From the list of structures below, which would you expect to contain labeled cells?
A.
B.
C.
D.
Correct. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers
Incorrect. See Key Concept 43.3 Gastrulation Generates Multiple Tissue Layers