Match each term with its definition or description.
-Primary germ layer that forms the brain and spinal cord
A)Zygote
B)Morula
C)Blastocyst
D)Placenta
E)Fetus
F)Embryo
G)Ectoderm
H)Mesoderm
I)Endoderm
J)Histogenesis
K)Amniotic cavity
L)Implantation
M)Organogenesis
N)Fertilization
O)Yolk sac

Question

Quizplus · Accepted Answer

Ectoderm is the primary germ layer that forms the nervous system, including the brain and spinal cord.

Answer: F
 Embryo is the term used to describe the developing organism from fertilization until the end of the eighth week of gestation.

Answer: H
 Mesoderm is the primary germ layer that forms the muscles, bones, reproductive organs, and other connective tissues.

Answer: I
 Endoderm is the primary germ layer that forms the lining of the digestive and respiratory systems, as well as several glands.

Answer: M
 Organogenesis is the process by which the embryonic cells differentiate into specific tissues and organs.

Answer: N
 Fertilization is the process by which the sperm and egg cells fuse to form a zygote.

Answer: K
 The amniotic cavity is a fluid-filled cavity that forms in the early embryo and surrounds and protects the developing fetus.

Answer: L
 Implantation is the process by which the developing embryo attaches to the uterine wall.

Answer: O
 The yolk sac is a temporary structure that provides nutrients to the developing embryo before the placenta is fully formed.

Match Each Term with Its Definition or Description