Q: Is the embryonicdevelopment in birds direct orindirect?
A: Animal developmental process can be direct or indirect. Direct development: It refers to the…
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: Compare the location and size of the prepuce in the fetal pig and in the human.
A: Anatomy can be defined as a branch of biology that is associated with the study of the organism’s…
Q: How similar is the genetic information within each blastomere?
A: Blastomere: Its is a stage in early embryonic development. It is 2 celled structure formed by first…
Q: What is a vestigial structure? What are some examples of vestigialstructures in humans and other…
A: Vestigiality is the retention during the process of evolution of genetically determined structures…
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: What are the archenteron and the blastopore? What is the stage of the embryonic development in which…
A: Gastrulation is the phase in the embryonic development of animals. During this phase, the blastula…
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: explain epistasis in retrievers. use a punnet square.
A: Epistasis could be a development in genetics during which the result of a gene mutation depends on…
Q: According to the phylogeny of vertebrae's, which came first, the chicken or the egg and why?
A: All chickens hatch from the eggs and all chicken eggs are laid by chickens. Chicken and egg is a…
Q: what will the plumule become after the embryo grows? what will the radicle become after the embryo…
A: After the seed receives the necessary conditions for growth such as water, oxygen, right…
Q: hat parts are persistent throughout the development of the sea urchin embryo? Why are these present…
A: A multicellular animal arises from a single cell a fertilized egg. During development ,the cell…
Q: Why is there a shorter lactation period in eutherians compared to marsupials?
A: Marsupials are the animals that are born immaturely and are carried by their mothers in their…
Q: With regard to early cleavage in the sea urchin, is the entire zygote involved in early cleavage
A: Introduction:- A sea urchin is a spiny marine creature with a globular body and a radial arrangement…
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: State the neuromere origin of each brain region?
A: Introduction Neuromeres Are Known As The Segments Of The Neural Tube That Forms The Embryonic Brain…
Q: choose between the tiven
A: Introduction An ecosystem is a geographical area in which plants, animals, and other species, as…
Q: When observing the caudal area, what structure(s) allow you to identify whether this pig is male or…
A: The caudal regions are regions that are found just beneath the tail in the posterior portion of an…
Q: How is the avian feather formed? What patterns the placement of the feather bud placodes?
A: To define patterns the placement of the feather bud placodes
Q: Compare and contrast polyp and medusa form. How is the polyp form advantageous over medusa and vice…
A: Cnidaria is the phylum that belongs to subkingdom Eumetazoa and kingdom Animalia. There are about…
Q: What are the modifications that are observed in birds that help them fly?
A: Birds are the group of vertebrate animals. They belong to the class Aves and phylum Chordata. They…
Q: Explain Segment identity is preserved throughout development?
A: Drosophila is a genus of small flies whose members are often called fruit flies. It has segmented…
Q: When viewing a 14-day old human embryo, could you identify the cranial and caudal ends? If yes,…
A: Gastrula is a three layered structure which transforms blastula into a complete organisms.
Q: What does “medial” mean? What does “lateral” mean? What does “proximal” mean? hat does “distal”…
A: Medial,lateral,proximal and distal are the terms used to locate position of organ/tissue with…
Q: What mechanism determines differentiation of fore limb VS hind limb?
A: Answer: Introduction: Limbs means legs and arms present in humans.Forelimbs that are present in the…
Q: What is distinctive about each of the following: horns of bovids, antlers of deer, and horns of…
A: Certain mammals contain horn or horn-like structures. These structures are pointed projections seen…
Q: Is the sulcus limitans present at the 72-hour stage? State the derivatives of the sacculus and
A: Embryo development is a process that occurs after the process of fertilization has occurred and the…
Q: In what ways do a bull’s reproductive organ structures differ from that of the human? How are the…
A: The reproductive system(male and female) is a complex system with a number of interconnected…
Q: What is the initial segment?
A: Neurons are highly polarised cells that serve as the foundation for directed information flow within…
Q: Ectodermal Derivatives of the Developing Chick Embryo A. 33-hour Chick Embryo Transverse…
A: 1. Neural is situated in the region of or on the same side of the body as the brain and spinal cord…
Q: Do male chicken have sigmoid flexure? sheath or prepuce? ampulla? accessory glands (e.g., prostate,…
A: In case of animals, the gender (male and female) are discriminated by various morphological and…
Q: How Nodal becomes expressed on the left side appears to differ among the vertebrate groups.
A: Vertebrates and other animals have lateralized internal organs. Nodal signaling cascade in lateral…
Q: What is blastomeres?
A: Embryonic development is also called as embryogenesis. It is a process by which the embryo forms and…
Q: What feature of the human cecum is lacking in the fetal pig?
A: The large intestine is also called as the large bowel. The large intestine is the part of digestive…
Q: Which breeds of dogs are tail docking done to? and why are they done in those breeds
A: Tail docking is a procedure of removing a portion of tail in dogs. Docking is done by surgical…
Q: What are the modification that are observed in birds that help them fly?
A: Birds are the group of vertebrate animals. They are warm-blooded animals. They belong to the class…
Q: In a developing chicken embryom, what is the fate of the postanal gut?
A: A postrectal extension of the embryonic hindgut to the cloacal membrane where the anal opening forms…
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: ANSWER BOTH QUESTION! #1. Discussed area vitellina #2. Is the primitive stalk still present? Why or…
A: The part of the yolk sac that does not yet contain mesoderm cells is known as the area vitellina.…
Q: During embryogenesis, how do segments become different that one another?
A: The process of forming and developing an embryo from a zygote (zygotic embryogenesis) or a somatic…
Q: Name the two forms of homo erectus.
A: Homo erectus is an oldest species of archaic human. They were appearing during the Pleistocene (2…
Q: n the early stages of amphibian development, what layer is involved in yolk digestion? What is the…
A: Embryonic development proceeds through these stages - cleavage, blastula, gastrulation, and…
Q: CHICKEN EMBRYO, What is the fate of the blood isla
A: When the union of two parental cells of chicken, ie, egg and sperm, takes place, a fertilized egg is…
Q: Why do flexion and torsion events occur in the developing embryo?
A: LONGITUDINAL FOLDING (Torsion) produces both head- and tailfolds, or flexion, and creates a cranial…
Q: Describe the step-by-step fertilization process in an amphibian.
A: Fertilization is the combination of haploid gametes, egg and sperm, to frame the diploid zygote.…
Q: What is the importance of the pharyngeal pouches in development? Discuss.
A: In embryology, pharyngeal pouch is defines as "any of a series of evaginations of ectoderm on either…
What are the structures present in the ox, sheep and goat but are absent in the pig and horse?
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