Homework Answers
The correct answer is-
C- mesoderm
This is because the mesoderm is the embryonic germ layer which develops between the endoderm and the ectoderm. In the Bilateria, the mesoderm result in giving rise to structures such as body wall musculature, supporting skeletons and secondary body cavities (coeloms).
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Question 7 4 pts This embryonic germ layer is only found in Bilateria. O a.) ectoderm...
D) Chidanans. E) nematodes. 10) Between organs and body wall, complex animals have a body cavity...
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...
Gastrulation is a large scale rearrangement of embryonic cells that gives rise to the primary germ...
Gastrulation is a large scale rearrangement of embryonic cells that gives rise to the primary germ layers. After gastrulation: Question 13 Not yet answered Points out of 2.50 p Flag question Select one: O a. The blastocoel replaces the archenteron b. The central nervous system induces the underlying notochord from mesoderm C. The notochord develops into the spinal cord and brain O d. Ectoderm forms the outer surface and induces the underlying mesoderm to form the central nervous system O...
1) Which of the following tissue type is incorrectly paired with the germ layer it originates...
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...
Question 4 4 pts What event CAUSES the dorsal identity of one side of a vertebrate...
Question 4 4 pts What event CAUSES the dorsal identity of one side of a vertebrate embryo? Endoderm interaction with ectoderm during gastrulation Sperm fusion relocation of vesicles carrying disheveled protein Endoderm interaction with mesoderm during gastrulation Sperm fusion relocation of vesicles carrying b-catenin protein
4. What tissue(s) is each of the following embryonic/extraembrhyonic tissues derived from during development (list germ...
4. What tissue(s) is each of the following embryonic/extraembrhyonic tissues derived from during development (list germ layer and embryonic/extrembryonic region): a. astrocytes b. chrorionic villi c. neurons comprising the oculomotor nerves (CNIII)
If you are observing embryonic development and notice that in one embryo the stomach, intestines, and...
If you are observing embryonic development and notice that in one embryo the stomach, intestines, and lungs do not develop, this is likely the result of a defect in which of the following cell layers? O A. Endoderm OB. Ectoderm OC. Mesoderm OD. Hypoblast When comparing oogenesis and spermatogenesis, which of the following statements is true? Both spermatogenesis and oogenesis commence during embryonic development, stop, and then are restarted only upon puberty and O fertilization. OB. Fewer mature, haploid gametes...
Page 5 28) Initially, the nutrients absorbed by the mass by simple A) osmosis. B) diffusion. C) peristalsis. D) cil...
Page 5 28) Initially, the nutrients absorbed by the mass by simple A) osmosis. B) diffusion. C) peristalsis. D) ciliary action. E) convection. trophoblast easily reach the Inner cell 29) The placenta is a source of which of the following hormones? A) h20 The placeata i B) relaxin C) placental lactogen D) progesterone E) All of the answers are correct 30) Which of the following is a critical event of the first trimester? A) cleavage B) implantation C) placentation D)...
Fluorescence Mapping of Blastomere in Sea Urchins Fate mapping is a technique that allows determination of...
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...
need help urgently Question 47 2 pts Neural crest cells are now known to be able...
need help urgently
Question 47 2 pts Neural crest cells are now known to be able to differentiate in to cells. None of the options shown. ectoderm All of the options shown mesoderm endoderm Question 42 2 pts Induced pluripotent stem (iPS) cells can be created by the expression of a set of key genes in most somatic cell types, including cells derived from adult tissues. O require a supply of donor egg cells, as is the case for embryonic...
lease solve all the questions, don't need to explanations Q1 - All animal species have general...
lease solve all the questions, don't need to explanations Q1 - All animal species have general characteristics in common. Check all of the characteristics that would apply to members of this kingdom. Check All That Apply a- Animal cells possess a cell wall and are quite rigid. b- Animals have the capacity to move at some point in their life cycle. c- Most animals undergo sexual reproduction where a small motile sperm cell unites with a larger egg cell to...
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...
Gastrulation is a large scale rearrangement of embryonic cells that gives rise to the primary germ layers. After gastrulation: Question 13 Not yet answered Points out of 2.50 p Flag question Select one: O a. The blastocoel replaces the archenteron b. The central nervous system induces the underlying notochord from mesoderm C. The notochord develops into the spinal cord and brain O d. Ectoderm forms the outer surface and induces the underlying mesoderm to form the central nervous system O...
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...
Question 4 4 pts What event CAUSES the dorsal identity of one side of a vertebrate embryo? Endoderm interaction with ectoderm during gastrulation Sperm fusion relocation of vesicles carrying disheveled protein Endoderm interaction with mesoderm during gastrulation Sperm fusion relocation of vesicles carrying b-catenin protein
4. What tissue(s) is each of the following embryonic/extraembrhyonic tissues derived from during development (list germ layer and embryonic/extrembryonic region): a. astrocytes b. chrorionic villi c. neurons comprising the oculomotor nerves (CNIII)
If you are observing embryonic development and notice that in one embryo the stomach, intestines, and lungs do not develop, this is likely the result of a defect in which of the following cell layers? O A. Endoderm OB. Ectoderm OC. Mesoderm OD. Hypoblast When comparing oogenesis and spermatogenesis, which of the following statements is true? Both spermatogenesis and oogenesis commence during embryonic development, stop, and then are restarted only upon puberty and O fertilization. OB. Fewer mature, haploid gametes...
Page 5 28) Initially, the nutrients absorbed by the mass by simple A) osmosis. B) diffusion. C) peristalsis. D) ciliary action. E) convection. trophoblast easily reach the Inner cell 29) The placenta is a source of which of the following hormones? A) h20 The placeata i B) relaxin C) placental lactogen D) progesterone E) All of the answers are correct 30) Which of the following is a critical event of the first trimester? A) cleavage B) implantation C) placentation D)...
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...
need help urgently
Question 47 2 pts Neural crest cells are now known to be able to differentiate in to cells. None of the options shown. ectoderm All of the options shown mesoderm endoderm Question 42 2 pts Induced pluripotent stem (iPS) cells can be created by the expression of a set of key genes in most somatic cell types, including cells derived from adult tissues. O require a supply of donor egg cells, as is the case for embryonic...
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