Dr. Dreâs net worth is a widely discussed topic. Ever since Apple acquired his headphone company, Beats, for $3.2 billion, it was reported that Dr. Dre had become the first hip hop artist to achieve a net worth of $1 billion. But is that really true? And if not, how much exactly is Dr. Dreâs net worth?
Parts of the urinary bladder and urethra of the urinary system are derived from endoderm, as well. The urinary bladder stores urine until the urethra releases it outside of the body. Several other internal organs are also derived from endoderm, including:
This means that they have three different germ layers. In between the endoderm and the ectoderm is a layer called the mesoderm. Each of these tissue layers will develop into different adult structures. For example, in humans: 1  Ectoderm: develops into your nervous system (brain and spinal cord) and outer skin layer.iploblastic animals have a gastrula with only ectoderm and endoderm layers. Triploblastic animals have a gastrula with ectoderm, endoderm, and mesoderm layers. These embryonic tissue layers will eventually develop into all the different tissues and structures found in an adult animal.