Which of the following traits do human embryos possess? O A tail O Webbed fingers and toes O Gills O All of the above

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: Amniotes are descended most closely from which of the following groups O reptiliomorphs O…

A: Amniotes is the clade used to include tetrapod animals like reptiles, birds and mammals. They lay…

Q: Which is theextraembryonic membranewhose function is to storenitrogen wastes of theembryo? Is this…

A: The membrane that is known to assist the developing embryo is known as an extraembryonic membrane.…

Q: What structure provides oxygen to the growing organism? placenta uterine wall embryonic disk neural…

A: Fertilization is the process of fusion of male and female gametes that takes place inside the…

Q: Which feature is found only in gnathostomes?     both pelvic and pectoral fins or appendages…

A: Gnathostomes are those organism who have jaws in their body. It includes two groups: Pisces: It…

Q: A genetic change that caused a certain Hox gene to be expressedalong the tip of a vertebrate limb…

A: The genes in the living organisms which determine the positioning of the organs in the bodies are…

Q: What is the thickened dark linear band which appears caudally in the midline of the dorsum of…

A: Each vertebra in the vertebrate spinal column is an irregular bone with a complicated structure made…

Q: How can biologists explain similar gill pouches in embryos of a chick, human, and cat? O genetic…

A: Gill pouches are also known as Gill pockets.They are paired protrusion present in pharyngeal wall.In…

Q: Which of the following mammalian structures is derived from one of the extra embryonic membranes?…

A: Introduction An extraembryonic membrane is one of the membranes that aid in embryo development. Such…

Q: What feature(s) separates a shark from a ray-finned fish?

A: Sharks are elasmobranch fish with a cartilaginous skeleton, five to seven gill slits on the sides of…

Q: What conclusion can be drawn from embryological development? Insect and bird wings are similar in…

A: Embryo  It is the structure that if form after the fertilization of egg and sperm.

Q: Blastocoel Visible nucleus O Archenteron Blastopore O Fertilization envelope

A: Formation of the fertilization membrane/fertilization envelop  The most important changes that…

Q: Question 11 Which is TRUE for embryonic development of prc O Lacking three germ layers O…

A: A protostome could be a cluster of animals that has invertebrates like arthropods (insectsand…

Q: Which of the following characteristics are present in Vertebrates? Choose all that apply. O…

A: 1) Triploblastic : Triploblastic animals are those in which the the blastoderm layer divides in…

Q: Can someone pleae help with 3 question for my biology homework thank you   1)List two traits that…

A: Answer 1. Both plants and animals have many common traits that are- Both animals and plants are…

Q: Which of the following traits do human embryos possess? O A tail O Webbed fingers and toes O Gills O…

A: Embryology is the study of the development of embryos and by comparing these developing embryos of…

Q: The discovery of Australopithecus afarensis (Lucy) was anatomically important because of what trait?…

A: Introduction The process of natural selection is used to change the characteristics of a species…

Q: Why is the evolution of the amniotic egg significant? Embryos are protected from predators.…

A: An amniotic egg is an egg which is terrestrially adapted egg and encased by a shell and…

Q: What best describes the hind leg bones seen in the whale? Leg bone O Vestigial structures that had a…

A: INTRODUCTION Vestigial structure This is anatomical structures which has no longer purpose in the…

Q: All of the following are true about humans EXCEPT: A. our zygote and early embryo cells have…

A: Introduction :- A zygote is a eukaryotic cell created when two gametes fertilise each other. The…

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: extra-embryonic

A: An extraembryonic membrane is one in every one of the membranes which assist within the…

Q: What is the space limited by the exo-coelomic membrane termed primitive yolk sac Amniotic cavity…

A: Introduction: The exocoelomic membrane, also referred to as the Heuser's membrane is short-lived and…

Q: The elephant and the crocodile evolved from a common ancestor. Which characteristic do they have in…

A: Elephant belongs to the class Mammalia and crocodile belong to the class reptilia. But there are…

Q: All the following are general anatomical similarities for MOST primates, EXCEPT: Opposable thumbs…

A: The answer is option 1. opposable thumbs.

Q: Which structure of the following forms the embryonic axis? Primitive streak Notochord Primitive knot…

A: Animal embryonic development, also known as embryogenesis, is the stage of development of an animal…

Q: Which of the following is not considered a key characteristic of vertebrates? Backbone O jaws skull…

A: Introduction Vertebrate's are the animals belonging to the subphylum Vertebrata, which is actually…

Q: The diagram shows various stages of embryonic development in 5 vertebrate species. Which of the…

A: According to the question, the diagram shows various stages of embryonic development in 5 vertebrate…

Q: Which of the following statements is true: O invagiantion is folding of cells that happens early in…

A: Blastocoel is a fluid filled cavity in blastula. First the morula(60 or more cells) is formed then…

Q: If the dorsal lip from a early gastrula is transplanted into a second embryo, which of the following…

A: Early embryonic development gives rise to the dorsal lip of the blastopore, a structure that is…

Q: At which stage ( one two or threee ) is it most difficult to tell the embryos apart? explain…

A: Introduction  -Embryology*The study of the developmental process from a single cell to a baby in 9…

Q: What type of body symmetry does this creature have?

A: The correct Answer is Option D . Bilateral Symmetry .

Q: In sea urchins, which of the following pairs of events most directly results in the short-lasting…

A: In sea urchins, fertilization involves multiple processes that prevent polyspermy (entry of multiple…

Q: If a deuterostome embryo split apart and one of the cells broke away early in it's development,…

A: Deuterostomes can be defined as that group of organisms in which during embryonic development, the…

Q: Which of the following structures give rise to pharyngeal (branchial) arches cranial nerves O Neural…

A: Introduction :- Pharyngeal arches are two structures that grow on either side of the growing…

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.