Answer: a. endoderm-bone
Explanation: In the context of embryonic development, bone tissue may arise from several precursor cell populations, such as the neural crest (some facial bones), lateral mesoderm (bones of the limbs, among others), and paraxial mesoderm (vertebrae and part of the skull). There is no evidence to suggest that any of the bony structures is derived from the endoderm germ layer.
Well, no.
Chicken pox are contagious, and acne is not. Also you would be very sick if you had chicken pox.
In appearance, I wouldn't go as far and say that they are alike, or similar as Chicken pox spread across the whole body.
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The correct answer is<span> a. Volcanic glass
Volcanic glass is also known as Obsidian. It is formed when lava cools down too rapidly and crystals grow minimally, without grains.</span>
The identity and quantity of all chemicals in the product. Data on potential risks to human health and the environment, including about the potential for pesticide residues on food (if applicable). Proof that the product manufacturing process is reliable.
