Which is NOT TRUE about embryonic germ layers? Group of answer choices The endoderm is the...
Which is NOT TRUE about embryonic germ layers?
Group of answer choices
The endoderm is the innermost layer
Not all animals have these germ layers
All eumetazoans have a mesoderm
Cell differentiation leads to germ layers
The become all the tissues in the adult
Homework Answers
Answer:
Choice- C
Eumetazoans clad include Ctenophora, Bilateria and Cnidarians. Cnidarians has got only ectopic and endoderm, separated by jelly like mesoglea, no mesoderm.
Endoderm is inner most layer. Mesoderm in middle and outer ectoderm.
Sponges have no 3 layers. Animals with 2 germ layers are called diploblastic eg cnidarians.
Cell differentiation form all 3 layers and derive to all tissues of adult.
Add Answer to:
Which is NOT TRUE about embryonic germ layers?
Group of answer choices
The endoderm is the...
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Part a: Name all embryonic germ layers that would have contributed to the tissues visible in...
Part a: Name all embryonic germ layers that
would have contributed to the tissues visible in the drawing (name
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Part c: Name up to three tissues types that are
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D) Chidanans. E) nematodes. 10) Between organs and body wall, complex animals have a body cavity called a A) cnidarian. B) mesoderm. C) mesoglea. D) coelom. E) thorax. 4) In the animal kingdom, cephalization is A) development of a body that has paired structures forming a side-to-side mirror image. B) concentration of sensory structures in the head. C) the ability to respond rapidly to external stimuli. D) evolutionary development of a netlike system of veins. E) development of eyes at...
Part a: Name all embryonic germ layers that
would have contributed to the tissues visible in the drawing (name
which visible tissue would have originated from which germ
layer)
Part b: Name the basic tissue types that are
present by giving examples
Part c: Name up to three tissues types that are
not represented in this drawing (if any are not represented).
Hair shaft -Interfollicular epidermis- Hair folliclé Papillary dermis Sebaceous gland LGR6 LRIG1 PLETI GLI1 LGR5 CD34 Reticular dermis...
1) Which of the following tissue type is incorrectly paired with the germ layer it originates from? A) Ectoderm - skin B) Mesoderm - nervous system C) Endoderm - digestive system D) all pairings are correct 2) Which of the following is a function of a skeletal system? A) body posture B) transfer of forces created by muscles C) physical protection of organs and tissues D) all of the above 3) Suppose a researcher for a pest-control company developed a...
Fluorescence Mapping of Blastomere in Sea
Urchins
Fate mapping is a technique that allows determination of the
fate of cells from the three germ layers. In worms, the endoderm
gives rise to the cells that line the intestines. The ectoderm
gives rise to cells of the nervous system and body covering. The
mesoderm gives rise to the muscles and other organs between the
ectoderm and mesoderm. A researcher is tracing the fate of a
particular cell (blastomere) from its position...
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