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- Frogsicles and MR CHEGGS
- Evolution, Stimulus, and Genetics
- My body has the directions for how to do this as well as everything else about me in my DNA (GENETIC CODE), it's like the blueprint instructions to make me!
- Homeostasis
- Antifreeze is used in cars to help their radiators not freeze so cars work in the winter. The homemade antifreeze in my body keeps my cells from freezing .
- Hello! I'm Woodward, a wood frog from northern Alaska. I'd like to tell you the story of my species and how over time we've accumulated adaptations [EVOLUTION] that have allowed us to live in this variable climate that has a winter 8 months long!
- Cells
- The weather starts turning colder around here in mid-October. The dropping temperatures signal to my body (STIMULUS) that it's time to start accumulating the compounds from my urine into my blood (RESPONSE).
- Metabolism
- It's been a long 8 months and now that I'm defrosted, I'm ready for a meal!
- Another change that happens in my body is that my liver releases sugar. This sugar will combine with the urine to make a sort of homemade antifreeze in my blood. This solution make me as balanced inside (HOMEOSTASIS) as I can be in these conditions.
- Life Goes On!
- Cells maintain homeostasis within a certain temperature, but when it gets so cold water is drawn out of them. The antifreeze I make allows enough water to stay in my cells so that they aren't damaged beyond repair.
- The Cell is the basic unit of life. As an animal, I have lots of cells (tissues, organs, and organ systems too).
- During my inactive time, my heart and breathing will also slow way down so that I will appear dead. But the sugar in my blood is just enough to allow my body enough energy for my survival (METABOLISM). When I awake and defrost I'll search for food!
- Once the eggs are fertilized the offspring will increase in size (GROWTH) and go through a series of changes in development, you probably know it as a metamorphosis . The cycle will continue and the wood frog species will too!
- Now I'm off to find a mate... (REPRODUCTION) having offspring and keeping population numbers up keeps my species from going extinct!
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