Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 43, Problem 29RQ
Which of the following gives rise to the skin cells?
- ectoderm
- endoderm
- mesoderm
- none of the above
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Chapter 43 Solutions
Biology 2e
Ch. 43 - Figure 43.8 Which of the following statements...Ch. 43 - Figure 43.15 Which of the following statements...Ch. 43 - Figure 43.17 Which of the following statements...Ch. 43 - Which form of reproduction is thought to be best...Ch. 43 - Which form of reproduction can result from damage...Ch. 43 - Which form of reproduction is useful to an animal...Ch. 43 - Genetically unique individuals are produced...Ch. 43 - External fertilization occurs in which type of...Ch. 43 - Which term applies to egg development within the...Ch. 43 - Which term applies to egg development outside the...
Ch. 43 - Sperm are produced in the______ scrotum seminal...Ch. 43 - Most of the bulk of semen is made by the...Ch. 43 - Which of the following cells in spermatogenesis is...Ch. 43 - Which female organ has the same embryonic origin...Ch. 43 - Which female organ has an endometrial lining that...Ch. 43 - How many eggs are produced as a result of one...Ch. 43 - Which hormone causes Leydig cells to make...Ch. 43 - Which hormone causes FSH and LH to be released?...Ch. 43 - Which hormone signals ovulation? FSH LH inhibin...Ch. 43 - Which hormone causes the regrowth of the...Ch. 43 - Nutrient and waste requirements for the developing...Ch. 43 - Progesterone is made during the third trimester by...Ch. 43 - Which contraceptive method is 100 percent...Ch. 43 - Which type of short term contraceptive method is...Ch. 43 - Which hormone is primarily responsible for The...Ch. 43 - Major organs begin to develop during which part of...Ch. 43 - Which of the following is false? The endoderm,...Ch. 43 - During cleavage, the mass of cells: increases...Ch. 43 - Which of the following gives rise to the skin...Ch. 43 - The ribs form from the ___________ . notochord...Ch. 43 - Why is sexual reproduction useful if only half the...Ch. 43 - What determines which sex will result in offspring...Ch. 43 - What are the advantages and disadvantages of...Ch. 43 - Why would paired external fertilization be...Ch. 43 - Describe the phases of the human sexual response.Ch. 43 - Compare spermatogenesis and oogenesis as to timing...Ch. 43 - If male reproductive pathways are not cyclical,...Ch. 43 - Describe the events in the ovarian cycle leading...Ch. 43 - Describe the major developments during each...Ch. 43 - Describe the stages of labor.Ch. 43 - What do you think would happen if multiple sperm...Ch. 43 - Why do mammalian eggs have a small concentration...Ch. 43 - Explain how the different germ layers give rise to...Ch. 43 - Explain the role of axis formation in development.
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- Which of the following are mismatched? (a) endoderm; lining of the digestive tube (b) ectoderm; circulatory system (c) mesoderm; notochord (d) mesoderm; reproductive system (e) ectoderm; sense organsarrow_forwardWhich of the following mammalian structures is derived from one of the extra embryonic membranes? Placenta Uterus Ovary Cervix The spaces in the ends of a long bone such as the femur contain? Yellow bone marrow Plasma Osteocytes Red bone marrowarrow_forwardIn adults, new connective tissue cells originate from the Ectoderm O Mesenchyme Endoderm Mesodermarrow_forward
- The peritoneum (as well as the pleurae and pericardium) of an adult body arose from the layer of a developing embryo. O at this point in the semester, I really don't care! (don't pick this one, even if it's true) ectoderm endoderm mesodermarrow_forwardFertilization _____. a. unites the nuclei of a sperm and egg cell b. forms a zygote that has chromosomes of both parents c. usually occurs in an oviduct d. all of the above e. a and b but not carrow_forwardThe olfactory pits form from which of the following? mesoderm cartilage ectoderm endodermarrow_forward
- What is in common between Epinephrine-secreting cells of the Adrenal Medulla gland and Melanin-secreting cells of the Melanocytes of the Epidermis? Both cell types are Epidermal ectoderm in origin Both cell types are neural ectoderm in origin Both cell types are neural crest cells in origin None of the abovearrow_forwardWhich of the following does NOT aid the sperm in fertilization? * Increased mitochondria Cytoplasmic bridge Acrosomes Flagellum development Hyaluronidase & proteasearrow_forwardWhich of the following structures give rise to pharyngeal (branchial) arches cranial nerves O Neural tube Neural crest cells Pharyngeal pouch endoderm Pharyngeal cleft ectodermarrow_forward
- 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 endodermarrow_forwardWhich of the follwing structures is not made up of several cells? Practris Seminiferous Tubule Follicle O Mitotic Spindle Antherarrow_forwardWhich structure of the following forms the embryonic axis? O Primitive streak Notochord O Primitive knot O Primitive yolk sacarrow_forward
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