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Germ Layers

Human beings ...

Question

Human beings have

A

two germ layers - ectoderm and endoderm

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B

two germ layers - ecotoderm and mesoderm

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C

two germ layers - mesoderm and endoderm

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D

three germ layers - ectoderm, mesoderm and endoderm

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Solution

The correct option is D three germ layers - ectoderm, mesoderm and endoderm
Humans are triploblastic animals which have three germ layers during embryonic development. The three grem layers are ectoderm, mesoderm and endoderm.

Diploblastic animals such as coelenterates have two germ layers - ectoderm and endoderm.

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Similar questions

Q. Ectoderms, mesoderm and endoderm are the three germ layers. Which layer among the three gives rise to the connective tissue?

Q. Identify the correctly matched pair/pairs of the germ layers and their derivatives.

A. Ectoderm - Epidermis
B. Endoderm - Dermis
C. Mesoderm - Muscles
D. Mesoderm - Notochord
E. Endoderm - Enamel of teeth

Q. Molluscs have only two germ layers- the ectoderm and the endoderm.

Q. Identify the correctly matched pair/pairs of the germ layers and their derivatives.
(A) Ectoderm - Epidermis
(B) Enoderm - Dermis
(C) Mesoderm - Muscles
(D) Mesoderm - Notochord
(E) Endoderm - Enamel of teeth

Q. Differentiated embryonic layers are called
I. ectoderm
II. endoderm
III. mesoderm
lV. mesoglea

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