Q: Is the embryonicdevelopment in birds direct orindirect?
A: Animal developmental process can be direct or indirect. Direct development: It refers to the…
Q: Name the process of development of egg into young one without fertilization?
A: The above-mentioned definition is true for parthenogenesis. It is a type of asexual reproduction…
Q: What parts are persistent throughout the development of the embryo? Why are these present in all the…
A: Answer
Q: What are the two types of embryonic folding?
A: In embryonic folding, the flat trilaminar disk turns into a lot of round shape embryos due to the…
Q: What are three notable features between the fertilized and unfertilized egg?
A: Sperms and eggs are the gametes produced by male and female animals respectively in sexual…
Q: At which embryonic event would one be able to first distinguish a diploblastic embryo from a…
A: Answer: In reproduction process after the fertilization of female egg cell with sperm male cell…
Q: What selective forces might limit the stage of development at which humans are born?
A: Introduction: The evolution of humans are influenced by the following five factors: Natural…
Q: Is the mammalianembryonic development director indirect?
A: The process of embryonic development is otherwise known as embryogenesis. Fertilization is the…
Q: How do the shape and structure of the uterus of the fetal pig compare with that of the human?
A: Reproductive system is used for the sexual reproduction. Female internal reproductive organs include…
Q: How do the location and the relative size of the bulbourethral glands of the fetal pig compare with…
A: Reproductive system is used for the sexual reproduction. Female internal reproductive organs include…
Q: What is the significance of the notochord?
A: Chordates includes all animals containing a vertebrate or a backbone. Two groups of the…
Q: Name two structures derived from each of the three embryonic tissue layers: endoderm, ectoderm, and…
A: Two structures derived from each of three embryonic tissue layers are : Endoderm gives rise to…
Q: Which embryonic germ layer lines the outer surface of the embryo
A: An embryo is the early stage of human development in which organs form critical body structures.
Q: What are some advantages of the pronounced cephalization that occurred as vertebrates evolved from…
A: Answer- Animals are adapted and evolved so that they can survive and reproduce well. In tetrapods…
Q: Describe the differences between protostome and deuterostome development.
A: Protostomes are organisms whose blastopores develops into a mouth. In comparison, Deuterostomes are…
Q: During embryonic development, which type of cleavage pattern leads to the development of a bird?…
A: In developmental biology, embryonic development, also referred to as embryogenesis, is that the…
Q: How do the somites, intermediate mesoderm, and lateral plate mesoderm contribute to embryonic…
A: The early stages in the case of embryonic development start with fertilization. The fertilization…
Q: Compare and contrast embryogenesis and morphogenensis and Outline the difference of somatic…
A: Embryo Embryo is the developing young one of multicellular organisms.
Q: What are the notable features of the fetuses of penguin, panda, and snake that they have in common?
A: Vertebrates include five major classes i.e., Pisces, Amphibia, Reptilia, Aves, and Mammalia. They…
Q: What Are the Principles of Animal Development?
A: The principles of animal development provide answers to various questions that might arise in mind…
Q: Birds, reptiles and insects have something in common as far as the development of their embryos.…
A: Answer :- Birds, insects and reptiles are higher vertebrate . All of these are developed from…
Q: What Causes the End of Cleavage in a Frog Embryo?
A: All frogs reproduce sexually, but instead of the fertilization taking place inside the female, it…
Q: If identical human twins develop from separate placentas, when must the embryo have separated? When…
A: Reproduction is the biological process through which the new individual organism is produced from…
Q: Describe the four membranes in the avian egg. How does EACH membrane affect the developing embryo?
A: Avian egg development.
Q: describe direct and indirect development and name some animal groups that have each type of…
A: Difference between the direct ns indirect development is listed below.
Q: Where is the egg located in the archegonium?
A: In Bryophytes plants, the female and male sex organs are termed archegonia and antheridia…
Q: How does developmental biology provide evidence of a common ancestry for vertebrates as diverse as…
A: Evolution is a gradual change that occurs in populations. Mutation, genetic drift, natural…
Q: If radial cleavage occurs during development, the animal will be a deuterostome (True/False)?
A: Deuterostome in greek mean second mouth. It make a nephrozoa clade with protostomia clade. they are…
Q: Which type of cleavage leads to the development of a bird?
A: Cleavage refers to repeated cell division in the fertilized egg. Cleavage leads to the formation of…
Q: Among the germ layers and developmental structures below: What is/are the FORMED ANATOMICAL…
A: Introduction Embryonic development is also called embryogenesis. It is the process where development…
Q: Explain the following terms: ectoderm, endoderm, mesoderm and stem.
A: Animal phylogeny is a rapidly changing field. The biologists mostly depend on the fossils to compare…
Q: How is embryology different from developmental biology?
A: During their life cycles;most of the living organisms like plants and animals undergoes various…
Q: What distinguishes an amniotic egg from eggs laid by other animals, including fishes, amphibians,…
A: Amniotic eggs are eggs layed by reptiles and birds. The organisms which lay these eggs are called…
Q: what evolutionary advantages does the amniotic egg have? explain how each component of the egg plays…
A: Allow embryos to grow faster and to a greater extent before hatching. Animals are no longer reliant…
Q: How do we develop from a single fertilized egg cell?
A: Introduction:- Fertilization is the process of haploid gametes fusing together to generate a diploid…
Q: are the essential similarities and differences between the development of sperms and eggs in mammals
A: Both sperm and ovum are haploid having 'n' number of chromosome. Both undergoes mitosis as well as…
Q: In the 33 hr. chick embryo stage what structure/s would serve as a guide to approximately…
A: Auditory vesicles are distinct. Three pairs of arterial arches arise from the ventral aorta. Somites…
Q: What are the four extraembryonic membranes of amniotic eggs of birds and other reptiles and what is…
A: Step 1 Extraembryonic membranes are those membranes that surround the embryo of terrestrial…
Q: Describe the structure and functions of the four extraembryonic membranes? Compare and contrast the…
A: Hello, the question you have posted is quite lengthy. I am answering the first two parts of the…
Q: How does von baer's law of development relates with the development of the frog embryo? evidences?
A: Von Baer's laws of development These are rules proposed by Karl Von Baer. The laws demonstrates the…
Q: Explain the developmental and functional similarities and differences between: Avian amnion and…
A: The membrane , that closely covers the human and various other embryos when first formed, it is…
Q: What structures are derived from the ectoderm, mesoderm, and the endoderm?
A: Embryology is the study of development and growth of fertilized egg(zygote) into mature embryo. The…
Q: What structures carry the egg from the ovaries to the uterus? Are these structures the same in all…
A: Introduction The ovary is a female reproductive organ that produces an egg called an ovum. This goes…
Q: What are the consequences of the differences in the yolk amount and distribution of eggs among…
A: The amount and distribution of yolk inside the egg decides the pattern of cleavage. The type of…
Q: Which of the following describes the importance of the formation of the morula in early human…
A: The fertilization leads to development of the first diploid cell which is called a zygote. By day…
Q: Where does the embryo get oxygen and release carbon dioxide? Hint: Where do vascular systems come…
A: From the given question, the given embryo is assumed to be bird’s embryo.The early stage of the…
Q: What are three differences between animal developmentand plant development?
A: Step 1 Development is the progression from earlier to later stages in maturation, a process whereby…
what characteristics are shared among bird embryos, pig embryos, and human embryos?
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- What is the fate of the four extraembryonic membranes in embryos of placental mammals?What are the four extraembryonic membranes of amniotic eggs of birds and other reptiles and what is the function of each membrane?What selective forces might limit the stage of development at which humans are born?
- How is embryology different from developmental biology?Is the embryonicdevelopment in birds direct orindirect?If identical human twins develop from separate placentas, when must the embryo have separated? When must separation have occurred if the twins share a common placenta but develop within separate amnions?
- Are the similar structures among vertebrate species during embryogenesis homologous structures? Explain.Which of the following is common to the development of bothbirds and mammals?(A) holoblastic cleavage(B) epiblast and hypoblast(C) trophoblast(D) gray crescentFrom what the amnion of mammalian embryo is derived?