Search results
Results from the WOW.Com Content Network
Shell-less chick embryo culture is the process of growing chick embryos in vitro, without their protective egg shells, for scientific observation. [1]Chick embryos and other avian embryos have been used as biological models to visualize the developmental stages of embryos for education and to perform embryological manipulations.
The constructivist method is composed of at least five stages: inviting ideas, exploration, proposition, explanation and solution, and taking action. [5] The constructivist classroom also focuses on daily activities when it comes to student work. Teaching methods also emphasize communication and social skills, as well as intellectual ...
Evolutionary embryology is the expansion of comparative embryology by the ideas of Charles Darwin. Similarly to Karl Ernst von Baer 's principles that explained why many species often appear similar to one another in early developmental stages, Darwin argued that the relationship between groups can be determined based upon common embryonic and ...
Human embryology is the study of this development during the first eight weeks after fertilization. The normal period of gestation (pregnancy) is about nine months or 36 weeks. The germinal stage refers to the time from fertilization through the development of the early embryo until implantation is completed in the uterus .
The Visible Embryo Project (VEP) is a multi-institutional, multidisciplinary research project originally created in the early 1990s as a collaboration between the Developmental Anatomy Center at the National Museum of Health and Medicine and the Biomedical Visualization Laboratory (BVL) at the University of Illinois at Chicago, "to develop software strategies for the development of distributed ...
All the developmental processes listed above occur during metamorphosis. Examples that have been especially well studied include tail loss and other changes in the tadpole of the frog Xenopus, [32] [33] and the biology of the imaginal discs, which generate the adult body parts of the fly Drosophila melanogaster. [34] [35]
Embryology is the subdivision of developmental biology that studies embryos and their development. The main article for this category is Embryology . Contents
The term morphogenetic field conceptualizes the scientific experimental finding that an embryonic group of cells, for example a forelimb bud, could be transplanted to another part of the embryo and in ongoing individual development still give rise to a forelimb at an odd place of the