How is the dorsal lip of the blastopore similar to the primitive streak? How are they different?

Q: Discuss the unique reproductive capacity of the bdelloid rotifer.

A: Bdelloid rotifers belong to kingdom Animalia and phylum rotifera.They are mainly found in freshwater…

Q: What are the spaces in between traceculae important for?

A: Trabecula can be defined as the small,  microscopic, tissue element that occurs in the form of a…

Q: How is the development of a hookworm larva different from the development of a pinworm larva

A: Larva is a stage during the development of animals. It occurs after the birth and before the reach…

Q: How does paurometabolous metamorphosis differ from hemimetabolous metamorphosis?

A: The class of insects undergoes morphological and biological changes after birth through the process…

Q: Are nematodes diploblastic or triploblastic animals?

A: Nematodes or roundworms constitute the phylum Nematoda or Nematohelminthes. They may occur as…

Q: Are all of the organ systems fully developed in a free- swimming larva? Which organ systems are…

A: There are some major organ systems in the body of the animals. These organ systems have a specific…

Q: What are the features of trabeculae?

A: The human body is a well built machine in which all the organs coordinate together to make it work.…

Q: What is a nauplius? What is the difference between direct and indirect development in Crustacea?

A: The ear is divided into the inner ear, middle ear or ear canal and the inner ear. The outer ear…

Q: What are Trochozoans ? Explain what do they play ?

A: The Trochozoa are a proposed Lophotrochozoa clade that is sister of Polyzoa. The trochozoans clade…

Q: What does Hemidactylus mean?

A: Geckos are reptiles and are found on all the continents except Antarctica. These colorful lizards…

Q: BLASTULA GASTRULA -Blastocoel Blastocoel Archenteron A Vegetal pole Blastopore Which of the…

A: Gastrulation - It is an early proces of embryonic development in which the implanted blastula…

Q: what was chracteristucs define the genus homo?

A: HOMINIDS:- Hominid are known as apes. This hominid belongs to the  Hominidae family includes a…

Q: How do the positions of the archegonium and antheridium relate to their reproductive function?

A: In the plant, anatomy archegonium can be described as a flask-shaped multicellular female structure…

Q: Are any areas of the frog zygote more darkly pigmented than other areas?

A: Yes , the animal pole is darkly pigmented.

Q: What type of scale is found in Scoliodon?

A: Scoliodon is a marine shark , also known as Dog fish due to it's dog like protruded snout . Phylum…

Q: can we differentiate the H. nana and H. diminuta eggs seen under a microscope?

A: 1. Hymenolepsis diminuta or H. Diminuta : eggs round or oval ,  size of eggs are usually 70-85…

Q: Blastocoel Visible nucleus O Archenteron Blastopore O Fertilization envelope

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

Q: What is the function of bud scales?

A: Vegetative reproduction (otherwise called vegetative proliferation, vegetative increase or cloning)…

Q: How many zygotes do humans have?

A: A zygote is a eukaryotic cell formed after the fertilization between two gametes, the sperm cell,…

Q: How bithorax impact developmental biology?

A: Development Biology is the branch of Biology which deals with the divisions and growth in embryo.…

Q: Why can the amphibiancirculation be classified asdouble and incomplete?

A: The system which is primarily meant for the circulation of substances through body fluids is…

Q: What castes occur in honey bees and in termites, and what is the function of each?

A: Insects are the most diverse group of animals belongs to class Insecta. They represent more than…

Q: The structure indicated by the arrow in the larva above is used for

A: Answer Option E) A and B only Locomotion and Feeding

Q: What are the flask shaped female sex organ in mosses called?

A: Mosses are the non-vascular plants that reproduce via spores. These organisms form a separate phylum…

Q: Explain syncytial blastoderm?

A: In most of the insects, superficial cleavage occurs in which the mitosis occurs without cytokinesis,…

Q: what is a cleidoic egg?

A:

Q: What are the external characters of Rana?

A: Rana is a genus of anurous batrachians, including the common frog known as the Holarctic true frogs,…

Q: What is the function of the arachegonium? O a. To carry out a sexual reproductive O b. To produce…

A: An archegonium is a multicellular construction or organ of the gametophyte period of specific…

Q: Are there notable similarities in the sex cells and sex organs in the different organisms, namely…

A: Answer:- Sexual generation drives hereditary recombination all through eukaryotic life forms and…

Q: How many semicircular ducts are found in the ear of Petromyzon, Scoliodon, Rana?

A: Semicircular canals are the interconnected tubes present in the inner ear of an organism. The number…

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: How are the specific cell types patterned correctly? How does the flatwormtell the posterior…

A: Planaria are flatworms that reproduce asexually through fragmentation (not binary fission, which is…

Q: what is the symplesiomorphic character of deuterostomes? explain

A: The study of links between various groups of species and their evolutionary development is known as…

Q: At which stage of embryonic development does the embryo have a blastopore?   Group of answer choices…

A: Embryogenesis is the development embryo which starts with the fertilization of egg cell with a…

Q: What are the external characters of Labeo?

A: Labeo belongs to phylum chordata and sub-phylum vertebrata. It belongs to class teleostomi. Its…

Q: Into what cavity does the blastopore open? The gastrular slit? What becomes of each? (min. 5…

A: An embryo is a structure formed after the fertilization of the egg cell by a sperm cell. The embryo…

Q: What type of centra does a tilapia have? what type of tail does a tilapia have?

A: Tilapia is a type of fish belongs to the family cichlidae . They are fresh water fishes found in…

Q: What do you mean by oidia?

A: A fungus is any member of the group of eukaryotic organisms that includes microorganisms such as…

Q: How many gill slits are present in Scoliodon?

A: Scoliodon or shark belongs to class Chondrichthyes.  Their skeletons made up of cartilage rather…

Q: Discuss the adaptations of Labeo?

A: Fishes are gill-bearing aquatic vertebrate animals. The earliest organisms that can be first…

Q: coprinus

A: Sexual reproduction occurs when the male and female gametes fuse together to form the zygote. In…

Q: What are the adaptations of Rana?

A: Rana is the genus name of the common pond frogs. Rana temporaria is one of the most common species…

Q: What is the difference between Labeo and Scoliodon?

A: Fishes are gill bearing aquatic animals that belong to the kingdom Pisces and phylum chordates. They…

Q: Draw a diagram that includes the various characteristics of protostome development: bilateral…

A: Protostomes belong from phylum invertebrate in which mouth originate prior to anus during the…

Q: How can we differentiate Taenia saginata and Taenia solium eggs?

A: Taenia, commonly known as tapeworm, is type genus of the Taeniidae family of tapeworms which is a…

Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.