If gastrulation was blocked by an environmental toxin, then ________.
A) cleavage would not occur in the zygote
B) embryonic germ layers would not form
C) fertilization would be blocked
D) the blastula would not be formed
E) the blastopore would form the mouth

Question

Quizplus · Accepted Answer

Gastrulation is the process by which embryonic germ layers (ectoderm, mesoderm, and endoderm) are formed. If it is blocked, the germ layers would not form, leading to abnormal development and potentially lethality.

If Gastrulation Was Blocked by an Environmental Toxin, Then ________