plain why fertilization in sea urchin and frogs is regarded as external whereas mammals' fertilization is regarded as internal

Q: e processes of meiosis and fertilization are essential in human reproduction. Which row in the chart…

A: Meiosis is the process of cell division where cell divides twice to produce the four haploid…

Q: consider a pig that has only fully formed ovary. how would this affect the pig's future…

A: Anything the gilt encounters before its first mating has the potential to influence its reproductive…

Q: Internal genitalia like the vagina, uterus, and ovaries in females, and the testes, epididymis, and…

A: Disorder of sex development (DSD) is a phenomenon that occurs in several organisms in which slight…

Q: At which embryonic event would one be able to first distinguish a diploblastic embryo from a…

A: Answer: In reproduction process after the fertilization of female egg cell with sperm male cell…

Q: Explain the advantages and disadvantages of self fertilization in these flatworms

A: Flatworms are the organisms that belong to the phylum “Platyhelminthes’. These organisms are…

Q: True statement about the mammalian reproductive system? (select one) The embryo produces hCG to…

A: Mammalian reproduction: a. Mammals reproduce through internal fertilization and are viviparous. b.…

Q: 1- Label the major arteries and veins of the systemic and pulmonary circuits, using the terms…

A: Introduction: The blood vessels are responsible for the transportation of blood throughout the body.…

Q: The Life Cycle of the Horse Embryo Process 2 Zygote Process Gametes Process 3 Reproductive organs…

A: The life cycle of a horse, like many other sexually reproducing organisms, involves a series of…

Q: Parthenogenesis isa. the process by which the germ layers form.b. involved in the formation of the…

A: Reproduction is the process by which living beings produce their own kind.

Q: To predict: The reproductive success of captive-bred females released in the wild.

A: Our efforts to boost food production rely heavily on biological principles applied to animal…

Q: Identify five (5) differences between frog and mammalian ovaries. Ovary Characteristics Frog…

A: Mammals, which include humans, are warm-blooded creatures having hair and vertebrates, or…

Q: why it is difficult to determine the sex of a newly hatched canary than a newborn puppy.

A: Reproduction is the process by which parents create new people or offspring. This procedure assures…

Q: Before neurulation occurs, the cells that will later become neural crest cells are part of the…

A: Before neurulation occurs, the cells that will later become neural crest cells are part of the…

Q: Birds, reptiles and insects have something in common as far as the development of their embryos.…

A: Answer :- Birds, insects and reptiles are higher vertebrate . All of these are developed from…

Q: after two weeks? Select one: Oa. First Three Days After Two Weeks Endometrium Amnion Ob. First Three…

A: Answer. Histologically, the uterus consists of three layers of tissue: Perimatrium, myometrium, and…

Q: Using the chromatophore (pigmented) cells of zebra fish as an experimental system, you and a…

A: Cytoplasmic motors Kinesin and dynein both are responsible for long-range transport in many cell…

Q: The ______ carries food and water to the developing zygote.

A: Nutrients are necessary for maintaining the growth of the embryo. In plants, the endosperm is the…

Q: At what phase of development would a mouse embryo appear me similar to a chick embryo? Blastula…

A: THE STAGE OF DEVELOPMENTIS BLASTULA STAGE.

Q: QUESTION 3 Which of the following statements is true regardng neurulation? The notocord is formed…

A: D. The notochord produces signals that induce neural tube formation.

Q: What is "ecdysis"? O The outermost covering of an ovum that undergoes external fertilization. O A…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: By the end of gastrulation the [Select] * has surrounded the outside of the embryo, the [ Select ]…

A: Gastrulation refers to the process by which a gastrula is formed from a blastula. Grastrula is the…

Q: In frog neurulation the notochord _______ the formation of the _______ in the ectoderm next to it.…

A: ANSWER) (a) expresses, neural plate

Q: In general, mammalian sperm are viable even if they are aneuploid, but pollen grains (a.k.a. “plant…

A: Sperm is the microscopic, elongated haploid motile male gamete or also called as paternal gemate.…

Q: Which of these is an example of asexual reproduction?     A hermaphrodite mating with another…

A: Reproduction is the biological process of self perpetuation race in which new organisms are produced…