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A: Embryogenesis It is defined as a process which occurs after the process of fertilization of an…
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A: The amniotic egg was the crucial evolutionary step that allowed the living organisms to breed…
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A: Answer- The organs starts to develop from the first month of the pregnancy in the humans.
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A: The heart performs the function of pumping blood to the different parts of the body. Different…
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A: Toads have an endoskeleton of bones and cartilages and support the soft parts that lie internally.…
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A: Answer is d.) somites.
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A: The correct response to this particular question will be, C. amniotic eggs.
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A: Answer is b.) gastrula.
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A: Placenta is an organ which helps in providing oxygen and nutrients to growing baby and removal of…
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A: Answer (e). Defensive cells
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A: Answer is b.) amnion.
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A: Introduction: A zygote is a eukaryotic cell created when two gametes fertilise each other. The…
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A: Introduction Life starts from single cell called Zygote. Zygote is the single diploid cell resulted…
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A: Hi, Thanks For Your Question. Answer : Correct Option Is D
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A: These are all human parasitic nematodes or trematodes.
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A: The development of a plant or animal embryo is called embryogenesis. This process starts with the…
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A: Mammals are warm-blooded vertebrates. They constitute the mammalia class.
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A: The study of biology that deals with the structure, function, evolutionary classification and…
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A: The correct option is C) albumen; allantois
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- Among living animals, only birds have ________. a. a cloaca c. feathers b. a four-chambered heart d. amniote eggsFigure 15.24 Which of the following statements about the anatomy of a mollusk is false? a. Mollusks have a radula for scraping food. b. Mollusks have ventral nerve cords. c. The tissue beneath the shell is called the mantle. d. The mantle cavity contains hemolymph.At which stage of embryonic development does the embryo have a blastopore? Group of answer choices A.Blastula B. Zygote C. Morula D. Gastrula
- The ___________________ of an egg serves as an embryos water supply while the ____________ provides a structure for gas exchange. A albumen; yolk B amnion; allantois C albumen; allantois D allantois; albumenAn animal whose blastopore develops into a mouth and the second opening into the anus can be called ______. Question 6 options: a) acoelomate b) bilaterally symmetrical c) a protostome d) a deuterostomeThe pericardial cavity forms froma. evagination of the early digestive tract.b. the neural tube.c. the coelom.d. the branchial arches.e. pharyngeal pouches.
- The ribs form from the ________. a. notochord b. neural plate c. neural tube d. somitesProtostomes and deuterostomes can be classified based ona. cleavage pattern.b. destiny of the blastopore.c. whether the fate of the embryonic cells is fixed early duringdevelopment.d. all of the above.At which of the following stages of development is a frog embryo composed of the most cells? Group of answer choices A. blastula B. neural tube stage C. gastrula D. zygote (fertilized egg)
- The cells that pull the archenteron through the blastocoel in the sea urchin are _____ cells called mesenchyme Group of answer choices A. mesoderm B. endoderm C. meroblastic D. macrolecithalWhich of these characteristics best promoted the survival of offspring in reptiles, birds, and mammals? A the amniotic egg B claws C two pairs of appendages D The ability to keep a constant internal environment. Please use copy penA deuterostome has what type of cleavage Group of answer choices A. spiral, indeterminate at 8 cells B, radial, indeterminate at 8 cells C. spiral, determinate at 8 cells D. radial, determinate at 8 cells
