Dolphins doesn't have vocal cords, on the other hand generating
sounds is a complex system of shrieks, Squeals, groans, trills, and clicks are generated
by their sphincter muscles inside the blowhole. <span>The
sphincter muscle is a circular </span>muscle<span> that usually retains contraction of a natural
body passageway or opening, which relaxes as required by normal physiological
functioning</span>
Hypothalamus is the correct answer
Answer:
an unhealthy climate unhealthy habits unhealthy foods. 2 : not in good health : sickly, diseased unhealthy animals. 3a : risky, unsound an unhealthy economy. b : of a harmful nature : bad, injurious unhealthy levels of lead.
Explanation:
hope this helps
I think the word you are looking for is precious.
<span>About 100 minerals are considered gemstones, which are precious minerals.</span>
