explain Three egg types in variegated four-o’clocks.

Q: Is the feather on the right side of the picture an adult male, adult female or juvenile? O Adult…

A: The presence of feathers in birds is their unique feature. Feathers provide insulation to birds and…

Q: Explain how the formation of the primitive streak during gastrulation relevant to the primitive…

A: The emergence of the primordial streak in the caudal portion of epiblast layer, which is a sign that…

Q: Contrast developmental activities in embryos before and after they reach the mid-blastula…

A:

Q: Describe preimplantation embryo diagnosis

A: Preimplantation means before implantation. Implantation is the attachment of the blastocyst or…

Q: What percentage reduction in reproduction does lameness cause in dairy cows?

A: Reproduction refers to the biological process by which new individuals of the same species are…

Q: base on Hamburger and Hamilton Normal Stages of Chick Development   draw the ff  Chick…

A: The Hamburger and Hamilton Normal Stages of Chick Development provide a standardized framework for…

Q: What is hypopharynx in cockroach?

A: Cockroaches are of ancient lineage and  have close resemblance with Insects so are known as tropical…

Q: How big do 4 O clocks become?

A: The four-o’ clock plants are also known as the beauty of the night or marvel of Peru. Their…

Q: Differentiate the primitive streak of the 24-hour from the primitive streak of the 18-hour

A: Primitive Streaks and its peculiar shape at various stages--- Primitive streak is very important…

Q: Which stages of development listed below are solid (do NOT contain a hollow space)? Select all that…

A: The embryo is the early stage structure formed inside the female parent body during the process of…

Q: What would happen if two sperm fertilized the same egg cell? If twosperm fertilized two egg cells?

A: Step 1 Fertilization and implantation is the process of fusion of two types of gametes (spermatozoa…

Q: Which of the following rows correctly identifies the development of the germ layers? Select one:…

A: The germ layers are an embryonic collection of cells that aid in the creation and development of…

Q: What is the Effect of Castration on Nervous System of the Mammalian Male

A: Introduction Castration is any surgical, pharmacological, or other procedure that causes an…

Q: Give the process of internal fertilization in turtle. Show illustration how the fertilization…

A: Turtles are a type of reptile known as Testudines. They are distinguished by a shell made primarily…

Q: Draw the H. nana egg and adult

A: H.nana or hymenolepiasis is caused by tape worm or cestode species. It is also called as dwarf tape…

Q: Explain early development of human from fertilization to hatching of the blastula.

A: Fertilization can be defined as the male gamete's fusion to the female gamete to form the zygote. In…

Q: Explain notch sginally pathway and wnt siganaling pathwya in regards to embryonal development.

A: Regeneration is an evolutionarily conserved process in animal kingdoms, but regenerative capacity…

Q: Describe the four membranes in the avian egg. How does EACH membrane affect the developing embryo?

A: Avian egg development.

Q: Describe the events that lead to slow and fast blocks to polyspermy and the differences between the…

A: Question - Describe the events that lead to slow and fast blocks to polyspermy and the differences…

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: Where is the egg located in the archegonium?

A: In Bryophytes plants, the female and male sex organs are termed archegonia and antheridia…

Q: answer quickly What is the importance of the pharyngeal pouches in development? Discuss.

A: We can say that In embryology, the pharyngeal pouch is defined as "any of a series of evaginations…

Q: What is the evolutionary significance of parthenogenesis in the class insects?

A: Parthenogenesis is a type of asexual reproduction in which the offspring develops from unfertilized…

Q: Explain the developmental and functional similarities and differences between:   1. Avian yolk…

A: Three fetal membranes are present in mammals; yolk sac, amnion, and allantois. Yolk sac and…

Q: Which of the following occurs to the blastocoel during Xenopus development?     is replaced by the…

A: Xenopus It refers to the genus of highly aquatic frogs that are mostly found in the regions of…

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: Male parental care occurs in only 7% of fishes and amphibianspecies with internal fertilization but…

A: Introduction  Reproduction is the characteristic of all biological species present on the Earth. All…

Q: Can you make an Introduction Paper (International, National (Philippines), and Local studies) about…

A: Tetralogy of Fallot (ToF) is a congenital heart defect that affects infants, and it is characterized…

Q: Name the mammal who has shortest gestation period.

A: Mammals are vertebrate animals that organize class Mammalia. They have mammary glands which produce…

Q: Draw a 72-hour old chick embryo, locate the brain, heart, limb buds, and the eye

A: Chicks are classified under Aves class. Males and females are separate in chicks. The male chick is…

Q: State one way in which Xenopus and chick development are same and one way that they differ? ASAP

A: The process of development of an animal is known as developmental biology. This process may follow…

Q: How do fruit fly maternal effect genes determine thepolarity of the egg and the embryo?

A: Drosophila melanogaster is generally known as the common fruit fly. It belongs to the family…

Q: Whether the statement "Because of the many later developmental transformations that produce the…

A: Gastrulation is the process by which the blastula develops into the three-germ layered gastrula.…

Q: What is the difference between direct and indirect development?

A: Development refer to the process of the formation of the adults from the progeny stage. There are…

Q: Explain constructively how is the formation of the primitive streak during gastrulation relevant to…

A: Initially in gastrulation, a maturing fertilised egg generates an extended band of cells called the…

Q: The horizontal and vertical axes of a sonogram indicate what aspects of a bird’s vocalization?

A: A sonogram is the image produced by an ultrasound procedure.The term sonogram loosely translates as…

Q: How Has Brain Volume ChangedOver Time in the HomininLineage?

A: Hominin are the primate species that are closely related to humans than chimps so they are…

Q: In the provided image (whole mount of 33-hour chick embryo), color the respective germ layers and…

A:

Q: Compare and contrast the three types of mammals with respect to fetal development and birth: the…

A: Fetal development begins with implantation when the sperm fertilizes the egg. At this point, the…