54. Amphibians are cold-blooded animals, meaning they do not have a constant body temperature but instead take on the temperature of their environment. They have moist, scaleless skin that absorbs water and oxygen, but that also makes them vulnerable to dehydration (loss of bodily fluids).
55. The first and foremost characteristic of the reptiles is that are cold blooded. They are able to regulate their inner body temperature to the temperature of the environment. They have scaly skins but absence of hair or fur. The scales of the reptiles develop as a surface cells filled with Keratin.
56. Characteristics of Birds. Birds are endothermic and, because they fly, they require large amounts of energy, necessitating a high metabolic rate. As with mammals, which are also endothermic, birds have an insulating covering that keeps heat in the body: feathers.
57. Mammary Glands.
Undercoat and Guard Hair.
Jaw and Ear Bones.
Four-Chambered Heart and Diaphragm.
Complex Brain Functions.
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ESCs are derived from the inner cell mass of an embryo, called blastocyst
Answer:
Yes, it is possible to get shingles more than once.
Explanation:
Women are more likely to have shingles a second time more than men.
The longer the post herpetic neuralgia ( pain after shingles) the higher the chances of recurrence.
If shingles comes back, it may occur on another side of the body. This is because, once you have had chicken pox, the virus remains in the nerve. When the virus then reactivates the infected nerves become inflamed and when the virus reaches the skin, the rash appears.
Answer:
A congenital disorder is a medical condition that is present at or before birth. These conditions, also referred to as birth defects, can be acquired during the fetal stage of development or from the genetic make up of the parents.
Explanation:
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