Q: Genetically unique individuals are produced through ________. a. sexual reproduction b.…
A: Step 1 Reproduction is a characteristic feature of all organisms. It is the biological process of…
Q: Where in the female body does fertilization normally occur? Question 23 options: a) In the…
A: Fertilization means the fusion of egg (of female) and sperm(of male). The eggs get matured in the…
Q: Placenta ... a) ... develops from trophoblast cells. b) ... develops from embryoblast cells. c)…
A: Pregnancy occurs when the male gamete sperm fuses and fertilizes with the female egg that is…
Q: The cells that pull the archenteron through the blastocoel in the sea urchin are _____ cells called…
A: The early stage in the development of the embryo is referred to as gastrulation. Gastrulation is a…
Q: The inner cell mass of a human blastocysta. gives rise to the chorion.b. gives rise to the…
A: Cell is the basic unit of life. Based on the number of cells an organism may be prokaryotic or…
Q: All fish, all birds and all mammals are A animals with internal fertilization. B carnivores. C…
A: Classification of animals includes the following phyla:Phylum - PoriferaPhylum - CnidariaPhylum -…
Q: Which of the following has three germ layers? (a) morula (b) gastrula (c) blastula (d) blastocyst…
A: Answer is b.) gastrula.
Q: How is colostrum most important to a newborn?a. It helps boost the newborn’s immune system.b. It…
A: Immune system is a complex organization of cells, tissues, and organs. The immune system important…
Q: Nematocysts are a.) reproductive cells b.)excretory organs c.) set of muscle cells d.)…
A: Answer (e). Defensive cells
Q: Internal and external fertilization differ in that species thata. produce an amniotic egg have…
A: The external fertilization process usually takes place in an aquatic environment where the male and…
Q: Question 2 Describe how a positive feedback process helps in childbirth.
A: Most cited example of positive feedback is labor and childbirth process. When head of ferus…
Q: The main function of the acrosome reaction is to (a) activate the egg (b) improve sperm motility (c)…
A: Answer is d.)facilitate the penetration of egg coverings by the sperm.
Q: A gastrulation does NOT Select one: A. Consist of endoderm, mesoderm, and ectoderm B. Result in the…
A: In developmental biology, gastrulation is a stage early in the embryonic development of many…
Q: The process of gastrulation forms the _______. a. blastula b. zygote c. organs d. germ layers
A: Embryogenesis refers to a process in which the development of an embryo takes place. An embryo can…
Q: Which of the following is not derived from the ectoderm? a. adrenal medulla b. epidermis of skin c.…
A: The cell is known to be the fundamental unit of all life forms. Those who are similar in functions…
Q: which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b)…
A: The mesoderm, or middle tissue, gives rise to most of the muscle and connective tissues. Finally the…
Q: Somites a. begin forming at the tail end of the embryo and then move forward in a wavelike…
A: Introduction: Somites can be defined as the longitudinal series among other series of blocklike…
Q: In humans, the development of fertilised egg takes place in the: (a) ovary (b) testis (c) oviduct…
A: Fertilization in humans refers to the fusion of human sperm and egg. This process occurs in the…
Q: Umbilical cord contains A allantois B yolk sac C arteries veins
A: The umbilical cord is a stretchable, tubular structure which joins the fetus to the mother during…
Q: Which of the following statements is incorrect?a. The placenta secretes hormones such as…
A: The placenta is a temporary organ that is formed in the uterus during pregnancy. The umbilical cord…
Q: 4. Sarcomas and hematopoietic cancers are both derived from which germ layer? A. Ectoderm B.…
A: "Cancer" is a fatal disease that has both physical and mental consequences for a person. Cancer can…
Q: The..........is a hollow ball of cells that develops from the morula. a) Blastocyst b) Oviduct c)…
A: The fusion of male gamete (haploid) and female gamete (haploid) is known as fertilization. It…
Q: Why is it immoral to culture headless embryos when in fact it can help to help people who need organ…
A: Murder of an individual is considered immoral. On similar terms, an embryo which is cultured to be…
Q: A) The correct order of chronological order of developmental events is a. 1.cleavage 2.…
A: Since you have asked two questions, we would be answering only the first. Post the second question…
Q: Which tissue type or organ is correctly matched with its germ layer tissue? A) nervous–mesoderm B)…
A: Introduction :- The mesoderm is a germ layer that develops between the ectoderm, which produces skin…
Q: The zona pellucida is important in mammals because it...
A: The zona pellucida is a thick extracellular layer that covers all mammalian eggs and preimplantation…
Q: Choose the correct answer from the choices below: Question: The queen ant when it fertilizes the…
A: Given: The queen ant is also known as gyne. It is an adult female reproducing ant in an ant colony.…
Q: Fill in the blank: Eventually the amniotic cavity is surrounded by a double-layered membrane called…
A: Introduction: Fetal development undergoes a series of steps. To protect the fetus from any injury…
Q: 1. Discuss the formation of cleavage of sea urchin 2. Discuss the formation of gastrulation of sea…
A: Sea urchins show radial holoblastic cleavage. The first and the second cleavages are both meridoneal…
Q: Which of the following is a true statement?(A) All mammals have menstrual cycles.(B) The endometrial…
A: Reproductive system (or genital system) is used for the sexual reproduction. The female attains…
Q: The placenta function to Select one: A. Produce blood cells B. Provide nutrition for the growing…
A: The placenta is a temporary, membranous, vascular organ that develops in females during pregnancy.…
Q: In the list of animals given below, hen is the odd one out.Human being, cow, dog, henThe reason for…
A: Reproduction is a process through which an organism produces organisms of similar kinds. It is of…
Q: Read the following statements and choose the option with only correct statements. (a) Tympanum…
A: Tympanum is the membrane which separate external ear and internal ear. When sound waves rreaches…
Q: Rose tells you her sister was only in labor 1 hour when she had her baby. Rose is planning to spend…
A: Yes we will advice her not to go for camping in her last day of pregnancy.
Q: Which form of reproduction is useful to an animal with little mobility that reproduces sexually? a.…
A: Answer is d.) hermaphroditism.
Q: What is NOT true about embryo development? A. a morula is an earlier stage than a gastrula B.…
A: Zygote is a structure formed by the fusion of male and female gamete. The stage of development of…
Q: Match the 3 germ layers with the specific structures they will develop into. Question 10 options:…
A: The reproductive growth process takes place in three principal stages. The first two weeks after…
Q: Match the tissue to the germ layer it develops from. Question Epithelium Central nervous…
A: Introduction: The three germ layers are notably noticeable in vertebrates during embryonic…
Q: The folding of ectoderm on the top of the embryo during organogenesis produces...? Group of answer…
A: In humans, the folding of neuro-ectoderm gives rise to one of the most important structure i.e…
Q: A change in the amount of yolk and its distribution in the egg will affect: A Fertilization…
A: Fertilization is the fusion of haploid male and female gamete results in the formation of the…
Q: Match the term to the correct description. + Allantois A. Fluid-filled membrane that protects the…
A:
Q: An additional notochord is grafted next to the developing neural tube. Answer the following…
A: The neural tube is an embryonic structure that eventually leads to the formation of the brain and…
Muscles are formed by the
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- Which of the following structures give rise to pharyngeal (branchial) arches cranial nerves O Neural tube Neural crest cells Pharyngeal pouch endoderm Pharyngeal cleft ectodermRead following statements A and B and choose the correct option. Statement-A : Taenia is triploblastic, acoelomate having solid mesoderm and alimentary canal is absent. Statement-B : In Planaria, fertilization is external, indirect development through many larval stages and possess low regeneration capacity. a.Only statement A is correct b.Only statement B is correct c.Both statements A and B are correct d.Both statements A and B are incorrectThis structure houses embryo. a. E b. A c. C d. B e. D
- Which of the following statements is true: O invagiantion is folding of cells that happens early in the embryonic development O balstocoel is the space in the morula o deuterostome animals will have the mouth first O protostome animals will have the mouth second enertocelous means the splitting of cells in the ectododerm layer which becomes endodermhe stomoueum is Ceated by dTivagmatIOT OF WITICITor the TOnowmg. a. Ectoderm b. Mesoderm c. Endoderm d. Epithelial tissue 2. Which of the following Branchial arches ( Pharynge ches) leads to the developme mandible? a. Arch II b. Arch II C. Arch I d. Arch IV and II 3. With regard to oral mucosa, the 4. Which of the following specialized mucosa of the tongue is NOT a taste bud? layer of cells is where cell division ta a. Fungiform papillae b. Foliate papillae C. Filiform papillae d. Circumvallated Papillae 5. 25 % of total salivary flow comes from which salivary gland? a. Submandibular gland b. Parotid gland c. Sublingual gland d. Von Ebner' s gland 6. True or False: A decrease in salivary flow will most likely lead to an increase in caries. 7. The lymphatics vessels are lined with which of the following? a. Endothelium b. Ectothelium c. Mesothelim d. Epithelia 8. Briefly describe the primary function of the lymphatic system: 9. Epithelial tissue depends on tissue for nourishment.Match the tissue to the germ layer it develops from. Question Epithelium Central nervous system Muscles Digestive tract Skeleton All Answer Choices A. Endoderm B. Mesoderm C. Ectoderm
- Most of the skeletal system develops froma. ectoderm.b. endoderm.c. mesoderm.Please someone can help me to fill in the frog anatomy what's the function of each organs in very short and meaning answers thank youChoose correct answers All insects have ocelli. | Both coronal and frontal sutures split during molting. Only coronal suture split during molting. Tentorium includes both dorsal and anterior arms. In beetles, mesothorax and metathorax are generally covered by elytra.
- This figure demonstrates a sheep heart that has been sectioned along the -- plane. transverse coronal saggital midsaggitalplease answer all parts if possible. A question from histology and embryology. please answer all parts if possible. A question from histologyThis question pertains to frogs Females arriving at the breeding pond may be encountered by males who grasp females (of sufficient diameter) from behind (amplexus). Amplexus may continue for hours to days, depending upon the condition of the female and is terminated only after spawning. The male releases sperm over the eggs as they are released by the female. Question 20: (please answer all the parts to this question and please type your answers) A: What are the benefits of amplexus? B: What are the consequences? C: Why do you think this very unique reproductive behavior come about in these vertebrates?