What is a potential result of injecting notochord tissue into the ventral (bottom) region of the mesoderm of a frog embryo. Group of answer choices A. a tadpole with no dorsal surface B. a tadpole with reversed legs C. a tadpole that never becomes an adult D. a tadpole with two spinal cords and brains

Q: Which molecules are released from the dorsal blastopore lip in the blastula-stage embryo?     a.…

A:

Q: Most of the skeletal system develops froma. ectoderm.b. endoderm.c. mesoderm.

A: Germ layer, any of three primary cell layers, formed in the earliest stages of embryonic…

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: What are placental mammal ? Explain the role of  placental mammal ?

A: Placental mammals are a diverse group, with nearly 4000 species described, the majority of which are…

Q: In a developing human, the first organ to form is thea. heart.b. brain.c. notochord.d. liver.

A: Answer- The organs starts to develop from the first month of the pregnancy in the humans.

Q: The hormone controlling metamorphosis in tadpoles is Group of answer choices A. thyroxin B.…

A: Some organism changes their young body to become adults such as in the case of insects while others…

Q: Why is embryogenesis important in reptile specially in snakes?

A: Importance of embryogenesis in reptiles especially in snakes.

Q: Answer exhaustively, why are the protein receptors on the egg cell particularly important among…

A: Introduction :- A male organism's sperm fertilises a female organism's egg outside of the female's…

Q: The experiment in which a second Zone of Polarizing Activity (ZPA) was transplanted to the anterior…

A: ZPA is a specialized zone or mesenchyme at the posterior part of the limb bud.

Q: Which statement is true of hox genes? Group of answer choices A. they regulate development of body…

A: Hox genes - Most animal homeotic genes code transcription encodes proteins that contain a region  a…

Q: which of the following a correct development sequence a. Neural plate, proliferation, neural…

A: The neural plate is a crucial developmental component that acts as the nervous system's foundation.…

Q: What would be the adaptive value of having a brightly colored male bird?

A: Natural selection leads to adaptation, that is, to a population dominated by living beings that are…

Q: Humans have a coccyx at the end of the vertebral column. What structure common to all vertebrate…

A: The coccyx is a triangular structure of bones near the bottom of the backbone, just below the…

Q: Which statement is true of Spemann’s organizer?a. It is unique to amphibian embryos.b. It arises…

A: Answer is a.)  it is unique to amphibian embryos.

Q: Provide the (1) description and (2) adaptive significance of the following developmental and body…

A: A set of characteristics shared by a group of phylogenetically related animals at some stage during…

Q: Annelids have a nervous system that includes: O a. Adorsal brain connected to a nerve net. O b. A…

A: Annelids are a phylum of invertebrate worms. They are the segmented worms , well known species are…

Q: Based on the findings of Spelke and her colleagues, under which of the following conditions are…

A: Growth and development of the children-  Growth is a continuous process, and it is quantitative…

Q: Which gene is incorrectly matched to its function?a. Hox—body shapeb. Pax6—body segmentationc.…

A: Hox genes are involved in laying out  a basic body plan. Pax6 gene is involved in the formation of…

Q: In a reptile egg, the extraembryonic membrane thatencloses the embryo in a watery environment is…

A: Answer is b.) amnion.

Q: Which of these characteristics best promoted the survival of offspring in reptiles, birds, and…

A: Reptiles are vertebrates that are covered in special skin made up of scales or bony plates. They are…

Q: During embryonic development, a neural crest would be found in all of the following chordates,…

A: Neural crest is a population of migratory cells which arise from the epithelial cells. It develops…

Q: Give typing answer with explanation and conclusion How are birds and snakes similar? Explain in…

A: In the world of biology and taxonomy, scientists categorize organisms based on their shared…

Q: Why is it important to know the sex of the frog? and why do we study the external features of the…

A: Frogs are the animals belonging to phylum amphibian. There as called so because they can survive on…

Q: Discuss the developmental history of frogs 2. Identify the stages or processes in the life cycle of…

A: Frogs are very diverse and are tailless amphibians belonging to order anura  They are largely…

Q: Define senescence. How would you measure senescence?  compare and contrast the two basic theories on…

A: The process of the growing old. In the  biology, the  senescence is a process by which the  cell…

Q: The formation of the neural plate is induced by the ….? Group of answer choices a. notochord b.…

A: The neural plate that has formed as a thickened plate from the ectoderm, which is induced by the…

Q: In species with internal fertilization, the eggs often are attached to the outside of the female's…

A: Brood chambers are specialized structures in some species with internal fertilization that provide a…

Q: If cells from the presumptive neural ectoderm of a frog gastrula are transplanted onto the surface…

A: The gastrula formation occurs during the early stage of cell development. During gastrulation the…

Q: Human beings are chordates, yet we lack most of the main derived characters of this animal cohort.…

A: *All chordates possess five important primary characteristic  during their larval or adulthood…

Q: Using the following list, describe the proper sequence for the events of animal development: 1.…

A: Animal development is occurs in sequential manner.

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: The zona pellucida is important in mammals because it...

A: The zona pellucida is a thick extracellular layer that covers all mammalian eggs and preimplantation…

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: Identify whether the following terms is related to either mitosis or meiosis or both.  1. Identify…

A: Cell division is a process by which a mother cell divides and produce two or more than two daughter…

Q: Are the similar structures among vertebrate species during embryogenesis homologous structures?…

A: The existence of similar structures in different species is one of the most important pieces of…

Q: Question #1: What is the adult fate of notochord?

A: As per our guidelines, we are supposed to answer only one question. Kindly repost other question as…

Q: 1. Select any ONE of the following and discuss how it develops: Dorsal axes in Xenopus b. Endoderm…

A: Amniotes are the group of vertebrates whose embryo develops within the extra-embryonic membrane.…

Q: mine which end is its head and which is its tail?

A: Mammalian embryogenesis can be defined as the process of cell division that involves cellular…

Q: Use the data (shown in red) to calculate the percent of embryos that developed at each pH (questions…

A: Amphibians  Amphibians are the animals that have dual life, they can survive on both land as well as…

Q: Grasshopper Compare the grasshopper to the spider and crayfish. How can you determine the…

A: