Question 18 In deuterostome development, a common developmental feature is the blastopore that formed during gastrulation becomes the anus. all have a spinal column. adults are bilaterally symmetrical. embryos have pharyngeal pouches that may or may not form gill slits.

Q: List the advantages of evolving a deuterostome pattern of development.

A:

Q: 14. Name the stage of development in this fish embryo..

A: After fertilization diploid zygote (2n) is developed. Then it is undergoes several stages of…

Q: Match up the following components of the cortical blood-brain barrier with their developmental…

A: The blood-brain barrier is an important feature of the human central nervous system. It constitutes…

Q: What two germ layers develop in the embryos of diploblastic animals? Check the two that apply.…

A: The two germ  layers of cells found in diploblastic animals are the outer ectoderm and the inner…

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 is delayed implantation? Why is it important in marine mammals?

A: It is a reproductive strategy used by approximately 100 different mammals in seven or eight…

Q: Mention four (4) important outcomes of gastrulation. Your answer must mention four concepts:(a)…

A: This question is about gastrulation.

Q: 7

A: The respiratory system of pigs play a major role in capturing the oxygen from the atmosphere and…

Q: Describe the differences between protostome and deuterostome development.

A: Protostomes are organisms whose blastopores develops into a mouth. In comparison, Deuterostomes are…

Q: Answer the following questions. 1. Where does a sea star embryo get its nutrition during prelarval…

A: Answer 1- A sea star embryo get its nutrition during prelarval stages of development from the…

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: Which statement about human reproduction is correct? In humans, spermatogenesis and oogenesis both…

A: Human reproductionIn human reproduction, male and female gametes formation occurs. The process in…

Q: What critical developmental process/es are altered following retinoic acid-exposure, which may cause…

A:

Q: what structure is the pointer pointing to? O Notochord what germ tissues are those structutres made…

A: There are different types of body structures, each specified for a particular function. These…

Q: At what phase of development would a mouse embryo appear me similar to a chick embryo? Blastula…

A: THE STAGE OF DEVELOPMENTIS BLASTULA STAGE.

Q: "morphogen"

A: Morphogen is a protein which is a signalling molecule that helps in formation of organs…

Q: QUESTION 24 The gametes (eggs or spermatozoa) of a typical animal are: O haploid, with two copies of…

A: The gametes (eggs or spermatozoa) of a typical animal are of a specific nature. Here we will discuss…

Q: A. How did Spemann separate the two cells of the embryo of a salamander in 1902?  B. The process of…

A: Spemann's experiment and removal of the nucleus are both important in modern science.