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: Can Animals be asymmetrical ?
A: The animal bodies can be categorised based on their plane of symmetry. They can be radial, bilateral…
Q: Mention the functions of feathers?
A: The members of the group vertebrate are fishes, amphibians, reptiles, birds and mammals. The birds…
Q: . Recognize the features that make placental mammalsunique.
A: Mammals are vertebrates that have mammary glands that produce milk for feeding their babies. Mammals…
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: Why is embryogenesis important in reptile specially in snakes?
A: Importance of embryogenesis in reptiles especially in snakes.
Q: Which of the following is the correct order for the four developmental phases in animals? A.…
A: Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia. With few…
Q: Explain the difference between holometabolous and hemimetabolous metamorphosis in insects, including…
A: Metamorphosis is a biological process that involves a series of changes that occur in the body of an…
Q: Along the notochord, segmented blocks of tissue that give rise to muscles, vertebrae, and connective…
A: Answer is d.) somites.
Q: What are the stages of egg cell development in humans?
A: Oogenesis is the growth process of a primary egg cell into a mature ovum in the human female. There…
Q: Which areas of the rat’s body are not covered with hair?
A: Rats belong to the kingdom Animalia, order Rodentia. They are medium-sized rodents of the genus…
Q: With an help of properly illustrated drawings, explain the difference in the development of…
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Q: d describe Life-span Development
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Q: During embryonic development, which type of cleavage pattern leads to the development of a bird?…
A: In developmental biology, embryonic development, also referred to as embryogenesis, is that the…
Q: Explain the development of a feather?
A: The epidermal growths which form distinct outer covering or plumage in aves are known as Feathers.…
Q: Briefly explain how radial symmetry and the lack of cephalization usually associated with it can…
A: Thank u for the question Answer : Radial symmetry has an adaptive value for sessile animals because…
Q: Explain the Tissue Stages of Development under Early Stages of Animal Development ?
A: The embryo in an animal develops, the cells start to divide, grow, and transfer in specific patterns…
Q: Outline the four overlapping stages of animal development.
A: Introduction Life starts from single cell called Zygote. Zygote is the single diploid cell resulted…
Q: The ribs form from the ________. a. notochord b. neural plate c. neural tube d. somites
A: The process by which cells of blastula get arranged to form germ layers is called gastrulation. The…
Q: describe internal and external fertilization, and provide examples of animals that use each of these…
A: Reproduction is the biological process through which a new individual organism is produced. The…
Q: Discuss how humans, as chordates, possess all fourcharacteristics either as embryos or adults.
A: All the chordates posses the following diagnostic characters either in the embryonic or adult…
Q: How can true seals be differentiated from the eared seals (sea lions and fur seals)?
A: BASIC INFORMATION SEALS Their scientific name is Pinnipedia. There are around thirty- three species…
Q: What is migration? Why do animals show this phenomenon?
A: Animal migration is mainly due to seasonal changes and it is the most common form of migration.…
Q: Describe the four membranes in the avian egg. How does EACH membrane affect the developing embryo?
A: Avian egg development.
Q: Explain how egg rotation and gravity determine anterior posterior patterning in chick embryos
A: Anterior posterior pattern formation is the regionalization process in which specific areas of cell…
Q: Give an account of the stemum of frog?
A: Amphibians: They are small vertebrates and almost live in a moist environment. They have special…
Q: Explain Segment identity is preserved throughout development?
A: Drosophila is a genus of small flies whose members are often called fruit flies. It has segmented…
Q: Define the following terms with respect to mammalian development •Chormesodermal mantle •Somites…
A: Mammalian development It is defined as the process of division of cells and differentiation of cells…
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 how larger Horns in the males of dung beetles could have evolved?
A: The dung bettles are the type of beetles that feed on the dung and the faeces. The male has a horn…
Q: Occasionally, two primitive streaks form in one embryonic disk. Predictthe result. What happens if…
A: Primitive streak : A primitive streak is defined as a transient structure that forms during the 15…
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: Explain the arrangement of wings of the cockroaches.
A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…
Q: Is fecundation in mammalsinternal or external?
A: Fecundation, also known as fertilization involves the physical union of the male and female gamete…
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: Which type of tail is present in Scoliodon?
A: Fishes are gill-bearing aquatic vertebrate animals. The earliest organisms that can be first…
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: Describe how early developmental processes in Eutherian mammals are different from those of other…
A: Hi dear, thanks for your question.here is answer you need .can you please give an upvote to me. The…
Q: Explain the developmental and functional similarities and differences between: Avian amnion and…
A: The membrane , that closely covers the human and various other embryos when first formed, it is…
Q: Do frogs have a cecum?
A: Biology is a branch of science that studies about the living organisms. The biology studies about…
Q: Describe the mating and breeding processes of sea lions.
A: Sea lions are pinnipeds, meaning they have external ear flaps, long foreflippers, the ability to…
Q: What are the consequences of the differences in the yolk amount and distribution of eggs among…
A: The amount and distribution of yolk inside the egg decides the pattern of cleavage. The type of…
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: y define budding, fragmentation, and parthenogenesis, and provide some examples of animals that use…
A: Asexual reproduction is a type of reproduction that does not include the combining of gametes or a…
Q: Explain how adjustments to gene expression affect the form andfunction of male and female mammals.
A: Whenever the sex chromosomes are considered, it is always stated that the female contains XX…
Q: Amniotic eggs, compared to non-amniotic eggs, are a useful adaptation for
A: Amniotic eggs have extra-embryonic membranes such as amnion ,chorion and allantois which have…
Describe how embryonic development determines certain coat patterns in animals.
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- Which of the following is common to the development of bothbirds and mammals?(A) holoblastic cleavage(B) epiblast and hypoblast(C) trophoblast(D) gray crescentExplain: Is the degenerating blastocoel visible in the frog gastrula? How much yolk protrudes through the blastopore of a frog gastrula How much yolk protrudes through the blastopore of a frog gastrula? Chickens lack a larval stage. How do they compensate for this?Explain how larger Horns in the males of dung beetles could have evolved?