Ectoderm in Biological Definition

Animal

... the Ctenophora or comb jellies. Both have distinct tissues, but they are not organized into organs . There are only two main germ layers, the ectoderm and endoderm, with only scattered cells between them. As such, these animals are sometimes called diploblastic. The tiny phylum Placozoa is ...

Developmental biology

... in developmental biology allantois , amnion , blastocyst , blastomere , blastula , blastulation , chorion , chrysalis , cleavage , ectoderm , embryo , embryogenesis , embryogeny , embryology , endoderm , extra-embryonic membrane , fetus (or foetus ), gastrula , gastrulation , ...

Drosophila

... occupies most of the body cavity, and coelom is reduced. The insect respires by means of air-filled internal tubes, the tracheae . This ectoderm -derived organ forms a highly branched tubular network which provides the organs with oxygen. Lifecycle and ecology Habitat Drosophila ...

Animal

... the Ctenophora or comb jellies. Both have distinct tissues, but they are not organized into organs . There are only two main germ layers, the ectoderm and endoderm, with only scattered cells between them. As such, these animals are sometimes called diploblastic. The tiny phylum Placozoa is ...

Neural plate

... The neural plate is thick and flat bundle of ectoderm which develops in the embryo into the nervous system . In the development sequence, the neural plate forms the neural tube which then forms the ...

Neural tube

... the rhomboencephalon , the mesencephalon and the prosencephalon . Formation of the neural tube is the result of an invagination of the ectoderm following gastrulation . This process is induced by signaling molecules produced in the notochord and basal plate . Neural tube defects ...

Thermoregulation

... is cooler, it emerges again. By changing its behavior, a lizard can keep the body temporature to some degree. However, since a lizard is an ectoderm , she is not able to control the body temperature through metabolic regulation. Some animals living in cold environment maintain their body ...