Big Idea 2: Biological systems utilize free energy and molecular building blocks to grow, to reproduce, and to maintain dynamic homeostasis.

(Big Idea 2, #1) Adhesion of water is when water sticks to anything that is not a molecule of water. The water is sticking to the sink tap.

(Big Idea 2, #3) ATP is the energy an animal uses to carry out most of its physical functions. This lizard uses ATP to move around the branch.

(Big Idea 2, #4) An autotroph (self-food) is an organism that creates the compounds it needs to live using simpler compounds. This bush is an example of an autotroph.

(Big Idea 2, #5)  The Calvin cycle is a series of redox reactions that take place in a plant's chloroplasts. The Cycle yields NADPH and ADP as well as other compounds. This plant goes through the Calvin cycle to keep up an energy supply.

(Big Idea 2, #6) Carbohydrates are organic compunds that yield short term energy. They are made up of only oxygen, carbon, and hydrogen. This loaf of bread is rich in carbohydrates.

(Big Idea 2, #8) Cellulose is an organic polysaccharide that is the major component in a plant cell's cell wall. This grass is rich in cellulose.

(Big Idea 2, #12) Ectotherms are 'cold blooded' animals or animals that have little to no heat regulation. The internal temperature of these animals depend on the outside temperature. This rattlesnake is an example of an ectotherm.

(Big Idea 2, #13) Endotherms are 'warm blooded' animals or animals that regulate their internal body temperature to keep it at a favorable range. This regulation uses up more energy than ectothermy. An example of an endotherm is this emu.

(Big Idea 2, #15) Enzymes catalyze many chemical reactions in organisms. Enzymes can be proteins or  RNA molecules. Salivary Amylase is an enzyme found in human saliva.

(Big Idea 2, #18) This plain colored amazon is an example of an animal that goes through glycolysis. Glycolysis is the series of reactions that turns glucose into pyruvate in many vertebrates.

(Big Idea 2, #19) This anteater is an example of a heterotroph. Heterotrophs must find food to sustain life, as they cannot synthesize their own. This anteater's diet mainly consists of ants and termites, which it must find to live.

(Big Idea 2, #21) These plants are examples of hypertonicity. The concentration of molecules within the branches of this plant is higher than the concentration of the water in the river surrounding it, making the plant hypertonic to the river.

(Big Idea 2, #23)  This sugar is an example of something that is hydrophilic. When placed in a solution of water, the sugar molecules are dissolved in it, making it a hydrophile.

(Big Idea 2, #24) This canola oil is hydrophobic. In the presence of water, it does not dissolve nor mix with the water molecules.

(Big Idea 2, #27 ) The Kreb's cycle is a series of chemical reactions used by all aerobic organisms to create energy. This jaguar is an example of an organism that goes through the Kreb's cycle to generate ATP.

(Big Idea 2, #32) Saturated fat is made up of fatty acids that only contain single bonds, leaving the maximum amount of room for hydrogen bonds. Butter contains a large amount of saturated fats.

(Big Idea 2, #33) The stomata of a leaf are the small pores on the bottom of it that release oxygen. The underside of this leaf has stomata on it. 

(Big Idea 2, #34) Taxis is an action that an organism performs in response to a change in stimuli such as a change in temperature. This hole is home to a mammal that is going through hibernation in response to the drop in temperature during the winter.

(Big Idea 2, #36) Transpiration is the process in which a plant releases water vapor in order to cool itself, change osmotic pressure of its cells, and allow mass flow of nutrients throughout the plant. This tree goes through transpiration.

(Big Idea 2, #38) The xylem is the transport tissue in vascular plants that transports water upwards in the plant. this tree stump has xylem that was used to transport water and nutrients to the appendage that used to be above it.