A79 – Summer 2009 REVIEW SHEET REPRODUCTION AND DEVELOPMENT 1) Compare external and internal fertilization. 2) Distinguish between spiral (protostomes) and radial cleavage (deuterostomes). 3) List the stages of development of a frog egg and describe features of each of these stages. 4) Identify various structures within the larval frog. Nervous system, circulatory system, and digestive system. 5) Compare the larval and adult stages of Xenopus . What are the advantages to this form of metamorphosis? 6) Which structures were you able to identify in the chicken embryo? 7) Very briefly describe the membranes surrounding the developing embryo. 8) Be able to identify the notochord, and spinal cord in a cross section. 9) Identify seminiferous tubules, spermatogenic cells, spermatozoa, interstitial cells, epididymis and vas deferens.
This is the end of the preview.
access the rest of the document.
seminiferous tubules, vas deferens, cells Interstitial cells, Testes Epididymis Vas, Identify seminiferous tubules