<span>Embryonic tissues or germ layers develop during the gastrulation stage.</span> <span>Gastrulation is a process in embryonic development during which the single-layered blastula is reorganized into a three-layered(or two-layered) structure called the gastrula. <span>Two primary germ layers(embryonic tissues) are an inner layer-endoderm and an outer layer-ectoderm. Endoderm and ectoderm interact and produce a third layer-mesoderm. Gastrulation is followed by organogenesis, three germ layers will give rise to specific tissue and organ.For example, ectoderm gives rise to epidermis and nervous system, endoderm to the digestive system and mesoderm to muscles, bones…</span></span>
<span>Hormones released during exercise that can cause a person to get a "physical high" are known as endorphins. These hormones are released by the brain's pituitary gland during any period that significant stress is felt. It can be produced during exercise or tiring activities, stress, or pain. They are released so they can help relieve the feelings of stress.</span>
Answer:
55 graphics should be euown
Hi! :)
The amount of uranium within nuclear fuel rods is enough to sustain a chain reaction but is less than the critical mass necessary for the reaction to become explosive.
