Which of the following is an illustration of instructive interaction? An inducing signal from the optic vesicle is necessary for new gene expression in the lens ectoderm. The epidermis signals the underlying dermis to create condensations and the dermal condensations then signal the epidermis to form specific cutaneous structures. Wing epidermal epithelium produces wing feather when exposed to wing dermal mesenchyme, but will produce scales and claw when exposed to foot dermal mesenchyme. When implanted in the newt embryo, the frog oral ectoderm can only differentiate into frog derivatives and will not differentiate into newt derivatives. Contact with the appropriate extracellular matrix is sufficient for cel

Which of the following is an illustration of instructive interaction? An inducing signal from the optic vesicle is necessary for new gene expression in the lens ectoderm. The epidermis signals the underlying dermis to create condensations and the dermal condensations then signal the epidermis to form specific cutaneous structures. Wing epidermal epithelium produces wing feather when exposed to wing dermal mesenchyme, but will produce scales and claw when exposed to foot dermal mesenchyme. When implanted in the newt embryo, the frog oral ectoderm can only differentiate into frog derivatives and will not differentiate into newt derivatives. Contact with the appropriate extracellular matrix is sufficient for cel

Body Structures & Functions

12th Edition

ISBN:9781285695495

Author:Scott

Publisher:Scott

Chapter5: Integumentary System

Section: Chapter Questions

Problem 3RQ

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Similar questions

Which of the following cell types is not associated with the epidermis? a. guard cells b. trichomes c. parenchyma d. pavement
Which of the following structures does NOT derive from the same type of tissue as the epidermis? a. sensory receptor b. sebaceous gland c. sweat gland d. hair
The anther wall consists of four wall layers where: (a) tapetum lies just inner to endothecium (b) middle layers lie between endothecium and tapetum (c) endothecium lies inner to middle layers (d) tapetum lies next to epidermis.
If calcium and potassium concentrations in the fibrous dermis of echinoderms are high, the dermis remains stiff. Group of answer choices True False
Select the correct one! Which of the following cell types is not associated with the epidermis? a. guard cells b. trichomes c. parenchyma d. pavement
If someone was arguing with you and said they knew that a paramecium had an epidermis, which of the statements below would best put the issue to rest? Multiple Choice The paramecium has a pellicle not an epidermis. The paramecium is single-celled and epidermis is derived from a tissue layer. Since the paramecium is composed of one cell, it cannot have tissues. The paramecium has cilia on the outside of the body and so it cannot have an epidermis. The epidermis would not allow the life-supporting process of diffusion, which is required by protozoans.
Which of the following is not a function of thehypodermis?a. protects underlying organsb. helps maintain body temperaturec. source of blood vessels in the epidermisd. a site to long-term energy storage
Which of the following is true concerning oil production in the skin? Oil is produced by apocrine glands The secretion is called sebum Oil is only secreted into hair follicles Oil is only secreted onto the skin Oil glands are most active at birth
Photoaging is a major factor in the senescence ofa. the integumentary system.b. the eyes.c. the nervous system.d. the skeletal system.e. the cardiovascular system.
Which statement about integument tissues is NOT TRUE? Group of answer choices A. Turtle skin is actually under their shell B. Dermal layers are mostly comprised of connective tissue of various kinds C. arthropod cuticles are noncellular secretions D. feathers and hairs are made of cells E. Epidermal layers are an example of epithelial tissue
Can you explain the derivative of dermis in mammals ? In detail with diagram where required
Which of the following cells may be found in the Rhoeo discolor epidermis? a. epidermal cell b. guard cell c. parenchyma cell d. inclusions e. stone cell