Use the extant phylogenetic bracket method to test the hypothesis that male coelurosaur dinosaurs were the primary providers of care for eggs and young
What will be an ideal response?
The extant phylogenetic bracket is formed by crocodilians and birds, and it provides a basis for discussion without giving a definitive answer to the question. Biparental care is assumed to be present in all of the extant species of crocodilians and is the familiar mode of parental care for birds. But among paleognathine birds, males provide parental care.
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Cells that reside in a specific connective tissue type for an extended period of time are
called A) transitional cells. B) stem cells. C) fixed cells. D) wandering cells.
What triggers the release of parathyroid hormone (PTH)?
A) decreasing sodium ion concentration of the blood B) increasing calcium ion concentration of the blood C) increasing potassium ion concentration of the blood D) decreasing calcium ion concentration of the blood
Which of the following is (are) not part of the peripheral nervous system?
a. motor neurons b. sympathetic nervous system c. spinal cord d. afferent division e. autonomic nervous system
The glycogen stored in the endometrial glands is broken down by the trophoblast to provide nourishment during the early stages of the developing embryo
Indicate whether the statement is true or false