If blood concentrations of thyroid hormones increase above a certain level, Thyroid releasing hormone (TRH) neurons in the hypothalamus are inhibited and stop secreting TRH. This is an example of negative feedback.

Chemical basis of life Define the following terms – (0.5 * 4 = 2 points) Isotopes Ions Covalent bond Valence electrons Name the four macromolecules. Mention the monomers and polymers for each type. State two functions for each of the four macromolecules ( 3 points) State the difference between saturated and unsaturated triglycerides. Which one of these is solid and which is liquid at room temperature? Name a food source for each type. (1.5 point) Name and give examples of 3 functions of proteins (1.5 points) Write 4 differences between DNA and RNA. (2 points)

Vitamin D helps with absorption of _________ from the digestive tract –

Skin Describe how are fingerprints formed and what are they used for. (1 points) Describe the structure and function of arrector pili. (2 points) Briefly describe the steps in Epidermal wound healing (2 points) Deep wound healing (2 points) Describe the structural characteristics of the epidermis that contribute to its ability to protect the surface of an animal. (3 points)

Which one of these conditions represents a cell placed in a hypotonic solution?

Match the terms in column A to its definition in column B

Match the type of joint in column A to its example in column B

Which cranial bone is called the “keystone” of the cranium because it articulates with every other cranial bone?

Put the cavities in order from broadest to most specific in which the lungs are located

The medial end of the clavicle articulates with ______________________.