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​The ovarian cycle produces a(n) ____.

Two or more different tissues arranged to carry out a specific function is called a(n) ____.​

​Which tissue is best described as a sparse distribution of cells surrounded by an open network of collagen and elastin fibers?

​Which mammalian group lays eggs?

One of the main functions of the hypothalamus is to produce ____ hormones, which affect the ____ pituitary.​

A new species of mammal is discovered deep in the Antarctic. This mammal contains an organ that does not seem to be homologous to any other known organ. Upon examination, it appears that this organ is responsible for secreting hormones necessary for regulating subcutaneous fat levels to regulate body temperature. To which system does this new organ most likely belong?​ What tissue would you expect to have the receptors for the hormone secreted by this new organ? Using this organ as a focal point, hypothesize how the organ would function to regulate the body temperature of this organism.

Hormones must have both [a] and [b] characteristics to perform their unique roles in the endocrine system.

Which molecule is the most abundant in the extracellular matrix of connective tissues?​

Which hormone is responsible from the release of calcium and phosphate ions from bone tissues into the blood?​

Which major tissue type contains contractile cells?​