Match each term with its definition or description.
-Source of nutrients in birds,but produces blood cells in humans
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

Yolk sac is the source of nutrients in birds, but produces blood cells in humans.

Answer: D
 The placenta is the organ that connects the developing fetus to the uterine wall to allow nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.

Answer: E
 The fetus is the stage of prenatal development after the embryonic stage, during which the body structures are fully formed and the developing organism grows and matures in preparation for birth.

Answer: F
 The embryo is the earliest stage of prenatal development, during which the basic body plan is established and major organs and systems begin to form.

Answer: N
 Fertilization is the process by which a sperm cell combines with an egg cell to form a zygote, which is the first stage of prenatal development.

Answer: K
 The amniotic cavity is a fluid-filled sac that surrounds and protects the developing embryo/fetus during prenatal development.

Answer: L
 Implantation refers to the process by which a fertilized egg (zygote) attaches itself to the uterine lining and begins to establish a connection with the mother's blood supply via the placenta.

Answer: M
 Organogenesis is the stage of prenatal development during which major organs and organ systems begin to form and differentiate from the three germ layers (ectoderm, mesoderm, and endoderm).

Answer: G, H, I
 Ectoderm, mesoderm, and endoderm are the three germ layers that give rise to all the different tissues and organs of the body during prenatal development.

Answer: J
 Histogenesis refers to the process by which cells within tissues and organs become specialized and differentiated into their specific cell types during prenatal development.

Answer: A
 A zygote is the first stage of prenatal development, formed by the fusion of a sperm cell and an egg cell during fertilization.

Answer: B
 A morula is a ball of cells that forms after several rounds of cell division in the earliest stages of prenatal development, before the formation of a blastocyst.

Answer: C
 A blastocyst is an early stage of prenatal development, characterized by the formation of a fluid-filled cavity and the differentiation of the outer and inner cell masses, which eventually give rise to the placenta and embryo/fetus, respectively.

Match Each Term with Its Definition or Description