The appearance of the __________ in the developing embryo marked the beginning of the first truly vertebrate phase of development.
A) limb buds
B) heart
C) neural crest
D) gastrula
Correct Answer:
Verified
Q10: There is a protective layer between the
Q11: The milk ejection reflex requires the action
Q12: The _ trimester of pregnancy is characterized
Q13: _ is the initial event in development.
A)Fertilization
B)Cleavage
C)Gastrulation
D)Organogensis
Q14: The trophoblast implants into the endometrial lining
Q16: In mammals,the embryonic cells form an inner
Q17: Birth occurs in response to uterine contractions
Q18: The hollow crater formed during gastrulation is
Q19: During the _ month,morphogenesis,the formation of the
Q20: Together,the chorionic frondosum and decidua basalis form
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents