4. Write the names of all four nitrogenous bases: A __ T __ C __ __ Start building the model by pairing the nitrogen bases. Pair all bases before proceeding. A __ pairs with T __ C __ pairs with __ 5. Start building your molecule upwards by locking four nucleotides together, In your model, the sugar of the lower nucleotide bonds with the __ of the upper nucleotide. Once you finish assembling the base pairs, continue to form the helical structure by connecting the sugar-phosphate sides of the ladder. 6. Add another pair of nucleotides. Your molecule is now three nucleotides long and all nucleotides are paired up (so your molecule has a total of six nucleotides). 7. Visit another group. Compare your DNA model to the DNA model made by the other group and answe the following questions:

A fuel molecule which contains a glycerol backbone and three fatty acids would be called: a triglyceride a cholesterol a tertiary protein a carbohydrate

Even though it is not funny, the bone in the upper portion of the arm is called: humerus radius julna

This bone is commonly referred to as the tailbone. cranium sternum coccyx sacrum

According to class what specialized organ do male mosquitoes use to detect wing vibrations of females? Tympanic organs Chordotonal organs Johnston's Organ Setae

What is the role of enzymes? Concentrate products of chemical reactions. Speed up the rate of chemical reactions. Combine with smaller molecules to make larger ones. Act as substrates for chemical reactions.

The esophagus differs from the standard arrangement of the alimentary canal in that it has __ gastric glands stratified squamous epithelium Brunner's glands villi

Herbivores which only consume plants Secondary Consumers Primary Consumers

Which of the following is a vital function of the skin? The skin converts modified epidermal cholesterol to vitamin D. The skin absorbs vitamin C so that the skin will not be subject to diseases. The skin aids in desiccation The skin aids in the transport of materials throughout the body. The cells of the epidermis store glucose as glycogen for energy.

When our sensory receptors notice a specific stimuli, they convert that energy to an action potential and send that to the central nervous system. What is this process called? Sensation Perception Transduction Absolute threshold

The region of the brain stem positioned closest to the spinal cord is the: Medulla oblongata Midbrain Pons