Hormones are chemical substances that affect the activity of another part of the body. Hormones serve as messengers, controlling and coordinating activities throughout the body.
The endocrine gland produces hormones.
Goiters are often produced in the Thyroid. Goiters is an enlarged thyroid gland. Goiters are believed to be painless, but Goiters make it difficult for the victim to breathe and swallow food. Goiters are caused by lack of iodine in one's diet. Treatment of Goiters depends on its size, some Goiters go away without any treatment while some goiters are treated through surgery.
Answer:asteroids and comets
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multicellular
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Animal cells do not have cell walls, which distinguishes them from other...
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