What are embryophtes?

Q: How is the mesoderm(third germ layer) oftriploblastic animals formed?

A: The germ layers develop early in embryonic life, through the process of gastrulation. Triploblastic…

Q: Is an zygote a life?

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Q: How permeable are egg shells?

A: Cells are the smallest functional and structural unit of all organisms. All cells have a cell…

Q: What is notochord?

A: Notochord is a rod that extends through the chordate organisms.

Q: What is the significance of the notochord?

A: Chordates includes all animals containing a vertebrate or a backbone. Two groups of the…

Q: What is amniotic fluid?

A: Fetal membranes are not a part of the body of the embryo. These membranes play some role in the life…

Q: What is protostome ?

A: Protostomes are large and diverse group classified by their shared characteristics: these…

Q: In whose phylum veliger larva occurs?

A: A larva is a juvenile form of animal with indirect development that looks completely different from…

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: What is cephalization? How does lateral symmetry favor cephalization?

A: Symmetry is the balanced distribution of duplicate body parts or shapes within the body of an…

Q: What is an amnion?

A: The question asks about the amnion.

Q: What is the difference between a mesoderm and a mesoglea?

A: Diploblastic animals contain body wall which develop from 2 embryonic germ layer - ectoderm and…

Q: How does the egg get from the ovary to a fallopian tube?

A: Reproduction is essential for the production of the healthy offspring and it is not necessary for…

Q: Explain the Type of protostome that produces atrochophore larva ?

A: Larvae are seen across the animal kingdom and are a specific juvenile form before they metamorphose…

Q: What is ejaculatory duct and its function in cockroach?

A: Cockroaches (Periplaneta americana) fall under the phylum Arthropoda of the class Insecta.

Q: Where does the formation of germ cells and sperm takes place?

A: Developmental biology is that the branch of biology that deals with the study the processes by that…

Q: What is developmental mechanism?

A: In biology, a mechanism is a system of causally interrelated elements and processes that result in…

Q: What are embryonic stem (ES) cells ?

A: Stem cells are cells that are undifferentiated or "blank." This ensures they have the potential to…

Q: How are tagmata formed?

A: The phylum Arthropoda is composed of animals with jointed appendages or legs. It is a phylum of…

Q: Which tissues and structures develop from ectoderm? frommesoderm? from endoderm?

A: During organic process, 3 primary germed layers, called exoderm, endoderm, and endoderm are shaped…

Q: Where are leydig cells located? What do they secrete?

A: The testicle is also called as testis. It is a male reproductive gland or gonad in all animals,…

Q: What is the difference between zygote and embryo?

A: The process of embryogenesis and fetal development initiate after the event of fertilization. It is…

Q: Explain the Embryonic Germ Layers ?

A: The layers of cells produced during the early phase of embryo development which gives rise to the…

Q: Comparision between coleoptile and coleorhiza?

A: Plants are autotrophs. They are called so because they are not dependent on other organisms and can…

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: How is the process of gastrulation accomplished in mammalian embryos?

A: In developmental biology Gastrulation is the process that take place in the early embryonic…

Q: What is the difference between atrium and coelom?

A: Cell organelles are structures within a cell that perform specific functions like controlling cell…

Q: Which ovary is functional in birds?

A: Ovary is the female reproductive organ found in lower chordates to higher animals. Ovary produces…

Q: what is a cleidoic egg?

A:

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: . How does the fertilization envelope form in sea urchins?What is its function?

A: Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete…

Q: Which layer is responsible for encasing the growing embryo?

A: An embryo is an early stage of development that is present in a multicellular organism. Embryonic…

Q: What’s a notochord?

A: Step 1 Kingdom Animalia or metazoan includes all animals of the two-kingdom classification except…

Q: What are coelomocyte, identify their location and enumerate their functions?

A: Coelomocytes as the name suggests are the phagocytic leukocyte cells that are present in the coelom…

Q: What happens if fertilization takes place in utreus?

A: Reproductive system (or genital system) is used for the sexual reproduction. The female attains…

Q: What are the animal poleand the vegetal pole of thevertebrate egg?

A: An embryo possess some polarity, according to which an embryo is divided into two hemispheres or…

Q: What is the importance of sensory cephalization in animal survival?

A: Cephalization is the process in animals by which nervous and sensory tissues become concentrated in…

Q: How do the eggs ovulated into the abdominal cavity find their way out of the frog’s body?

A: To understand the path of the egg we need to understand that frogs lay eggs. This process usually…

Q: What are germ cells?

A: In humans, mainly 2 types of cells are present; germ cells and somatic cells.

Q: Explain how the embryo forms from the zygote

A:

Q: How does the sperm reach upto egg and how does it enter into the egg?

A: Fertilization is the process in which a sperm and egg are fused together in the uterine tube of the…

Q: What is zygotes ?

A: Fertilization is the process of combining gametes to create a new individual organism or offspring…

Q: What is ripened ovary known as?

A: Plants are mainly multicellular organism, predominantly photosynthetic eukaryotes of the kingdom…

Q: What is the destination of the notochord in vertebrates and in protochordates?

A: A notochord appears in embryos as a small flexible rod made from cells from the mesoderm. It is only…