Cells migrate, transforming a blastula into a gastrula. Answer Bank The presence of a cell wall restricts the movement of cells. Cell division and tissue differentiation occur at localized regions called meristems. Cell division and tissue differentiation occur throughout the developing body.

Q: Which of the following mechanisms could negatively impact embryo development in humans? a mutation…

A: The embryo is developed from the zygote by the mitotic divisions. The zygote is formed after the…

Q: D А- -E B- C- OALL

A: Structural changes occurs in different stages of chick embryo.The 72 hour chick embryo shows the…

Q: Developmental Biology Questio: List two similarites and two differences between the cells on the…

A: The study of the development of a new life from a single cell to a fully matured embryo is known as…

Q: Germ layers are layers of gametes. layers infected with bacteria. layers of cells surrounding…

A: The objective of the question is to identify the correct definition of germ layers in the context of…

Q: Which if the following is true about the cleavage of Tunicates? Choose all possible answers…

A: Tunicates Tunicates are the invertebrate chordates, These are also known as Ascidians, these are…

Q: The is the foundation of a medical term The comes at the end of a medical term The is attached to…

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Q: It asks to use the development images below to identify one of each of the following in the photos:…

A: Fertilization is the process of formation of Diploid zygote from the male and female gamete 's…

Q: This refers to the restrictive changes in the genetic potential that leads to specific developmental…

A: Restrictive changes in the genetic potential means that the fate of a cell is autonomously specified…

Q: Who is definitive and intermediate host? (Zoology subject)

A: The above diagram is on the life cycle of plasmodium. Here we have to find out what is the…

Q: 1. In mouse embryos containing 8-16 cells, the cells with apical surfaces will adopt a…

A: The neural tube is a hollow, tubular structure that forms during early embryonic development. It…

Q: 34, 32 33- 35 31- 30 36, 29 39 38 37 40, 28 27 26 25 42 24 23 44 45 46 2 -w 20 19 17 18 9 16 14 15…

A: Only the causal half of the embryo must twist 90 degrees after 72 hours of fertilisation, causing…

Q: The umbilical cord contains stem cells that differentiate into different types of the hematopoietic…

A: Stem cells are undifferentiated cells with the extraordinary potential to develop into multiple…

Q: Toxoplasma gondi: Releases oocysts by gametogony in intestinal epithelium of dog. Oocyst is…

A: Toxoplasma gondii is an eukaryotic protozoan and is an obligate intracellular parasite which causes…

Q: In insect embryonic development, the fertilized egg nucleus divides repeatedly giving rise to…

A: Embryonic development in insects The period of development of embryo starts at fertilization and at…

Q: Which of the following follows fertilization in Xenopus embryos? Calcium waves cause non-yolky…

A: Fertilization in xenopus embryos is  mainly complex multi-step process that completed in 24 hours.…

Q: Blastocoel Visible nucleus O Archenteron Blastopore O Fertilization envelope

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

Q: A variety of structures that the descendants of a cells can potentially form refers to which of the…

A: During the developmental process a single cell can differentiate and can produce different other…

Q: Draw and label x.s. of Amphioxus, amphibian, avian and mammalian clavage and blastula stages. Label…

A: The stage of early animal embryonic development known as blastulation is when the blastula is…

Q: Which of the following are characteristics of stem cells? Select all that apply.     --They can…

A: Stem cells are cells that have the potential to differentiate into any type of cell and can divide…

Q: Name some derivatives of the neural What is the lamina terminalis

A: Q1. Neural Crest: Neural crest cells are a type of transitory cell that arises from the embryonic…

Q: Induced pluripotent stem cells are transforming medical research because they have the potential to…

A: Pluripotent stem cells are capable of producing all of the body's cells.

Q: Mesenchymal stem cells are one of the adult stem cells with a germ spesific mesodermal…

A: Stem cell are special group of cells in the body which have the ability to self renew and…

Q: A patient presents with a malignant tumor on her right ovary, as a tech what pre-operative steps…

A: As a technician, it is important for to ensure a safe and successful surgery for the patient.…

Q: You have received an opportunity to work with a professor. He wants you to induce a tumor in a model…

A: Model organism are those non human  species, which are extensively used in laboratory to test a…

Q: Label the Human scalp and Identify whether it is eukaryote or prokaryote and Indicate the type of…

A: Human scalp It refers to the dense subcutaneous layer of fat and fibrous tissue. This is present…

Q: Give typing answer with explanation and conclusion A vacuole that is digesting parts of the cell…

A: A cell is the basic unit of life that makes up all living organisms. It is a complex, self-contained…

Q: During development, which cell in the list below is the least committed? O zygote O Morula Inner…

A: Cells that have committed to to a particular pathway of differentiation. Precursor cells in fetal or…

Q: If is a cell is too large or does not have the correct resources it______ Group of answer choices…

A: The cell makes up the most fundamental unit of a living organism. Millions of different types of the…

Q: Which round of cell division is uneven? (hint: the SEM images will be helpful) a)First b)Second…

A: During early development, sea urchins exhibit radial holoblastic cleavage.

Q: Q1: This is a type of cell that can become any type of cell or even a complete embryo. Totipotent…

A: Stem cell has the ability to develop into specialised cell types in the body. Stem cells are those…

Q: morphogenetic process whereby cells extend themselves, making the cells narrower and longer…

A: Hi, Thanks For Your Question.  A morphogenetic process whereby cells extend themselves, making the…

Q: Define differentiation and explain how that process leads to the 200 different cell types composing…

A: The basic building blocks of all living organisms are called cell. Cells are the structural,…

Q: After the sperm cells enter a synergid, one fertilizes the egg in a two-step process. First there is…

A: Fertilization is a process which includes fusion of haploid male and female gametes (egg and sperm)…

Q: auer larva ? It's a larva from a special variant of C. elegans that was first identified in samples…

A: Dauer larva is a larval stage of C.elegans. This stage of larva is very much different from other…

Q: What are two questions you developed from reading this passage?

A: Fertilization occurs in humans when a sperm nucleus fuses with an egg nucleus, resulting in the…

Q: In this picture what is happening during step 1 to create the cell in the middle. You cản answer…

A: Cell division is the process of division of cell into daughter cell. The cell division can take…

Q: Match between term and description. The terms on the right can be used once, but there are more…

A: An organism is a living creature with a well-organized structure that can respond to stimuli,…

Q: The red arrows in Figure 1 indicate a normal open epiphyseal plate (an open growth plate).   What…

A: The epiphyseal plate is also known as the growth plate and is a thin cartilaginous structure present…

Q: 4:28 March 22 3:13 PM Edit cleavage gastrulation cell differentiation Question 19 The only location…

A: Question 19:  The correct answer is: cardiac muscle: heart. Explanation: Smooth muscle is found in…

Q: < 4:28 March 22 3:13 PM Edit activation energy free energy Question 17 In the fourth stage of…

A: Step 1:17.AThe question in the image is about embryonic development. Of the listed processes,…

Q: Stem cells are considered pluripotent - instead of totipotent because they cannot become part of the…

A: The explanation for the choice of the question has been described in the following step,

Q: Question #1. Stage when cells cannot repair themselves and unable to make protiens. Question #2.…

A: The stage where cells cannot repair themselves and are unable to make proteins is the stage of…

Q: How long after ovulation does it take an embryo to develop? The resulting embryo may become the…

A: Fertilization is the fusion of haploid gametes, egg and sperm, to form the diploid zygote. Human…