Q: Is the embryonicdevelopment in birds direct orindirect?
A: Animal developmental process can be direct or indirect. Direct development: It refers to the…
Q: Draw the structure of head region of cockroach?
A: Cockroaches are the insects belonging to the order Blattodea. These are generalized insects and do…
Q: Is the type and pattern of the cleave of an egg the same to all species of animals?
A: During the mitotic division, the cytoplasm of the egg is divided into multiple parts which then…
Q: make a concept map that shows how reproduction takes place in animals. (Include the modes, sexual…
A: Reproduction can be defined as the process in which a single parent or both parents give produce…
Q: explain how different types of development patterns (metamorphosis) in insects contribute to the…
A: Metamorphosis can be defined as the biological process by which an animal physically develops after…
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: How are mammalian extraembryonic membranes formed?
A: The layers encircling the embryo inside the uterus are known as extraembryonic membranes. The…
Q: prepare sketches Eight-cell sea urchin embryo
A: Step 1 Phylum Echinodermata is of spiny skinned, triploblastic, enterocoelomic, deuterostomic…
Q: make a concept map, to discuss how reproduction takes place in animals. (Include the modes, sexual…
A: Reproduction is the process through which which offspring are produced from their parents. Each…
Q: What structural adaptation in chickens allows them to lay theireggs in arid environments rather than…
A: The vertebrate embryo requires an aqueous environment for their development. The amphibians and…
Q: Write in detail the process of organogenesis in vertebrates. Give one example and make diagram also.
A: In embryology, Organogenesis can be described as a series of processes that lead to converting the…
Q: Illustrate an egg in the morula stage. How does its size compare with that of the fertilizied egg?
A: MORULA STAGE OF EGG- It is an early stage of embryo consisting of 16 cells called blastomeres which…
Q: What are some advantages of the pronounced cephalization that occurred as vertebrates evolved from…
A: Answer- Animals are adapted and evolved so that they can survive and reproduce well. In tetrapods…
Q: Compare the process of gastrulation in amphioxus and birds
A: Gastrulation is a process early in most animals' embryonic development during which the blastula is…
Q: If activity of the organizer is inhibited, what does the embryo become? A mass of notochord. A mass…
A:
Q: Which type of cleavage leads to the development of a bird?
A:
Q: In the frog embryo, convergent extension elongates the notochord. Explain how the words convergent…
A: The embryo is known to be the early stage of development of a “multicellular” organism. The…
Q: describe direct and indirect development and name some animal groups that have each type of…
A: Difference between the direct ns indirect development is listed below.
Q: Compare & contrast the organizer in frogs and birds
A:
Q: Suppose you watch a video showing the development of an unknown animal. What clues can the…
A: Animals can be classified based on morphological characteristics (traits that can be observed after…
Q: Explain the evolutionary advantage of the amniotic egg
A: Amnion is a membrane which enclose the embryo after it's formed.Embryo is the initial stage of…
Q: What kind of cleavage pattern characterizes snail development? Describe its orientation.
A: Snails, earthworms and flatworms are remarkably different animals, but they all exhibit a very…
Q: In the sexual reproducing phyla Nematoda, are the animal’s hermaphrodites or separate sexes?
A: Hermaphrodites are the animals which have both the sexes present in the same body i,.e they are able…
Q: According to this picture of embryos (early developmental stages), which two organisms are most…
A: Between all the organisms, some characteristics are similar and some characteristics are same. Based…
Q: Briefly explain how and why the yolk distribution in mammalian eggs has changed from their…
A: According to Bartleby expert, when multiple questions are posted we are allowed to answer the first…
Q: Cleavage Gastrulation Neurulation Organogenesis
A:
Q: Explain gastrulation in fish
A: Gastrulation in Fish: - Gastrulation is defined as a process in which gastrula is formed from a…
Q: Explain mesoderm where it is present in animal kingdom?
A: In an embryo, germ layer is a group of cells that interact with each other during the development of…
Q: Describe embryonic gastrulation in protostomes vs. Deuterostomes
A: Protostomes: The clade of animals originally thought to be characterised by the formation of the…
Q: Give two ways nature uses to hide differences between X- and Y-sperm in mammals?
A: Most cells of the mammals contain both an X and a Y chromosome, but in the process of…
Q: Can the dorsal lip of the blastopore inducecells in another part of the amphibian embryoto change…
A: The dorsal lip of a blastopore is a structure formed during the early development of the embryo. The…
Q: Describe external fertilization process of sea urchin egg with diagram
A: Fertilization in sea urchin occurs solely through the external process in which egg and sperm fuse…
Q: From what the amnion of mammalian embryo is derived?
A: Amnion is an extraembryonic membrane also known as fetal membrane along with chorion, allantois, and…
Q: Describe the process of neurological development in a vertebrate embryo. B. Compare and contrast…
A: CNS of a vertebrate originates from a longitudinal groove present on the neural plate that forms the…
Q: Number these steps in vertebrate embryogenesis in order. ______ formation of archenteron…
A: The embryonic development begins after fertilization that involves fusion of male and female…
Q: Write a brief description of one cellular level event that could go wrong during the gastrulation…
A: Gastrulation stage of a zebrafish embryo. The outer dashed line represents the epidermis, while the…
Q: prepare sketches of Four-cell sea urchin embryo
A: Sea urchins are spiny, globular animals belonging to phylum Echinoderms, in the class Echinoidea.…
Q: Distinguish two mechanisms by which flatworms supply yolk for their embryos. Which system is…
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: Distinguish between holometabolous development and hemimetabolous development and give 2 insect…
A: The development of insects passes through various stages. Various changes in the morphology and…
Q: Describe and distinguish patterns of reproduction in monotremes, marsupials, and placental mammals.…
A: The mammals belong to the class Mammalia and the main feature of them are the presence of mammary…
Q: Compare gastrulation in the frog and the chick
A: The sperm and egg fuse to together to form a zygote, after eighth cell stage, the blastula is…
Q: Discuss and make comparisson about the reproductive organs of birds and reptiles. How are their…
A: Reptilia and aves Reptilia is a taxonomic class that includes all the reptiles, examples of reptiles…
Q: The egg of a fish is what type of chordate egg and why? a. isolecithal b. telolecithal with total…
A: All fish eggs are surrounded by using an envelope, referred to as the zona pellucida (ZP), that…
Q: Summerize various metabolic events involved in cleavage and blastulation in different animals.
A: The development of multi-cellular organisms begins from a single-celled zygote, which undergoes…
Q: How are growth and development controlled in insects?
A: Insects are categorized as arthropods.
Q: How are the clock and the determination front connected to the role of Hox genes?
A: Developmental processes in vertebrates are regulated by genes.
Q: In animal phyla with radial cleavages, cell fate of the embryo is?
A: Radial cleavage is a developmental pattern of embryos where the cell division happens…
Explain the process how does a mammalian embryo determine which end is its head and which is its tail?
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- According to this picture of embryos (early developmental stages), which two organisms are most closely related?In animal phyla with radial cleavages, cell fate of the embryo is?What structural adaptation in chickens allows them to lay theireggs in arid environments rather than in water?(A) extraembryonic membranes(B) yolk(C) cleavage(D) gastrulation
- Explain how the flat embryonic disc takes on the cylindrical shape of a tadpole.describe direct and indirect development and name some animal groups that have each type of development?Using sea star embryos as an example, describe gastrulation. Explain how the mass of inert yolk affects gastrulation in frog and bird embryos
- Which of the following exhibits embryonic development by the protostome pathway? A) Mammals B) Sharks C) Amphibians D) Arthropoda E) Cnideria Explain whyelucidate. How is the formation of the primitive streak during gastrulation relevant to the primitive streak during axis formation?Illustrate an egg in the morula stage. How does its size compare with that of the fertilizied egg?