Term
What is form and function based on? |
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Definition
Genetic variation "tested" by environmental conditions in the form of trial and error testing. |
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Term
What does genetic variation "tested" by environment conditions include? |
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Definition
Physical laws, rates of diffusion, heat exchange, etc |
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Term
Rate of _________________ is _________________ to ___________________________. |
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Definition
Rate of exchange is proportional to surface area of the cell. |
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Term
Amount needed to ______________________ is ____________________ to _________________________. |
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Definition
Amount needed to exchange is proportional to cell volume. |
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Term
When do organisms have simple methods of exchange? |
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Definition
When they are single-celled or have simply body plans |
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Term
When organisms are single-celled or have simple body plans, they also have... |
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Definition
simple methods of exchange. |
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Term
What is true of the cells of more complex organisms and their exchanges with the environment? |
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Definition
The cells of more complex organisms each require sufficient rates of exchange and contact with the environment. |
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Term
What does the exchange of more complex organisms allow for? |
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Definition
Maintaining internal homeostasis in more variable environments. |
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Term
Closed circulatory system |
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Definition
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Term
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Definition
Closed circulatory system |
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Term
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Definition
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Term
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Definition
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Term
What are the two additional components found in a closed circulatory system? |
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Definition
Interstitial fluid and gases, nutrients and wastes are diffused or pumped between cells and fluids and between fluid types. |
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Term
What are exchanges between in a closed circulatory system? |
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Definition
- Cells and fluids - Between fluid types |
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Term
What ratio is better for higher exchange rates? |
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Definition
High surface area to low total volume ratio. |
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Term
What is the formula for surface area? |
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Definition
(height x width of each surface) x the number of those surfaces with those dimensions |
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Term
What is the formula for total volume? |
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Definition
(height x width x length) x the number of those units with those dimensions. |
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Term
What is the formula for surface-to-volume ratio? |
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Definition
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Term
What is the mnemonic to remember the the order of increasingly complexity in the formation of living things? |
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Definition
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Term
What is the order of increasingly complex things that form living things |
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Definition
Atoms - Molecules - Organelles - Cells - Tissues - Organs - Organ Systems - Organism |
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Term
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Definition
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Term
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Definition
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Term
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Definition
Support cells that nourish, insulate and replenish neurons |
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Term
Support cells that nourish, insulate and replenish neurons |
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Definition
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Term
What are the main functions of the digestive system? |
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Definition
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Term
What are the main functions of the circulatory system? |
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Definition
Internal distribution of materials |
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Term
What are the main functions of the respiratory system? |
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Definition
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Term
What are the main functions of the immune and lymphatic system? |
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Definition
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Term
What are the main functions of the excretory system? |
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Definition
Disposal of metabolic wastes and regulation of osmotic balance of blood |
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Term
What are the main functions of the Endocrine system? |
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Definition
Coordination of body activities |
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Term
What are the main functions of the Reproductive system? |
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Definition
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Term
What are the main functions of the nervous system? |
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Definition
Coordination of body activities; detection of stimuli and formulation of responses to them |
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Term
What are the main functions of the Integumentary system? |
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Definition
Protection against mechanical injury, infection and dehydration; thermoregulation |
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Term
What are the main functions of the skeletal system? |
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Definition
Body support, protection of internal organs, movement. |
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Term
What are the main functions of the muscular system? |
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Definition
Locomotion and other movement |
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Term
Which systems are for coordination and control? |
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Definition
Endocrine system and nervous system |
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Term
What are the four features of the Endocrine system? |
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Definition
- Slower response, but longer duration - Signal (hormone) through blood - Cells with proper hormone receptors respond - Growth, development, reproduction, metabolism |
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Term
What are the four features of the nervous system? |
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Definition
- Faster response but shorter duration - Signal (nerve impulse) through nerve - Cells directly associated with nerve cell respond - Rapid response to environment |
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Term
What is the mnemonic for the features of the Endocrine system? |
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Definition
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Term
What is the mnemonic for the features of the Nervous system? |
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Definition
Feign sickness, carry riches |
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Term
What are the feedback mechanisms that help maintain homeostasis? |
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Definition
Negative Feedback and Positive Feedback |
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Term
negative feedback and positive feedback are... |
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Definition
the feedback mechanisms that help maintain homeostasis |
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Term
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Definition
Response that reduces the stimulus |
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Term
Response that reduces the stimulus |
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Definition
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Term
Response that amplifies the stimulus |
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Definition
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Term
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Definition
Response that amplifies the stimulus |
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Term
Which kind of feedback is the more typical kind of feedback? |
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Definition
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Term
What are two example of a stimulus and response in negative feedback? |
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Definition
- Increased temperature leads to sweating - Low blood sugar leads to hunger |
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Term
What is an example of a stimulus and response in positive feedback? |
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Definition
Pressure during childbirth leads to contractions |
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Term
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Definition
Physiological changes cycling roughly every 24 hours |
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Term
Physiological changes cycling roughly every 24 hours |
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Definition
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Term
True or false: circadian rhythms occur only in plants. |
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Definition
False: circadian rhythms occur in both plants and animals |
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Term
In what kind of organisms do circadian rhythms occur? |
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Definition
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Term
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Definition
Maintenance internal body temperature |
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Term
Maintenance of internal body temperature |
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Definition
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Term
Optimal temperature varies from _____________ to _______________ |
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Definition
Optimal temperature varies from species to species |
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Term
______________ _______________________ varies from species to species |
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Definition
Optimal temperature varies from species to species |
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Term
True or false: all species have the same optimal temperature |
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Definition
False: optimal temperature varies from species to species |
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Term
What does temperature effect? |
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Definition
Diffusion rates, membrane fluidity, enzyme activity |
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Term
What are two drastic changes that can happen due to a change in temperature? |
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Definition
- Warming or cooling by 10*C can increase or decrease enzyme activity by a factor of 2 - Temperatures that are too warm can denature enzymes and make them non-functional |
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Term
Warming or cooling body temperature by _________ can increase or decrease enzyme activity by a factor of _____ |
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Definition
Warming or cooling body temperature by 10*C can increase or decrease enzyme activity by a factor of 2 |
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Term
What are the classifications for how organisms heat their bodies? |
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Definition
Endothermic and ectothermic |
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Term
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Definition
Heat primarily through metabolism |
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Term
Heat primarily through metabolism |
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Definition
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Term
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Definition
Heat primarily gained from environment |
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Term
Heat primarily gained from environment |
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Definition
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Term
What are examples of organisms that are endothermic? |
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Definition
Mammals, birds, some non-avian reptiles, some fish, many insects |
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Term
What are examples of organisms that are ectothermic? |
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Definition
Amphibians, lizards, snakes, turtles, many fish, most invertebrates |
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Term
Endothermic and ectothermic heat effect... |
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Definition
the food requirements and activity levels of organisms |
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Term
What are the food requirements and activity level of ectotherms as a consequence of being ecothermic? |
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Definition
Ectotherms need less food, but they also have a lower activity level |
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Term
What are the food requirements and activity level of endotherms as a consequence of being endothermic? |
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Definition
Endotherms have higher activity levels, but they also require more food |
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Term
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Definition
Organism that has relatively constant body temperature |
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Term
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Definition
Organism whose body temperature varies with the environment |
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Term
What are the classifications for an organism's body temperature |
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Definition
Homemotherm and Poikilotherm |
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Term
Organism whose body temperature varies with the environment |
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Definition
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Term
Organism whose body tempeature is relatively constant |
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Definition
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Term
How does homeotherm and poikilotherm relate to ectotherm and endotherm? |
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Definition
An ectotherm can be a homeotherm and a poikilotherm, but an endotherm can only be a homeotherm. |
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Term
Heat moves from _____________________ to ____________________ |
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Definition
Heat moves from an object of higher temperature to an object of lower temperature |
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Term
What are the ways through which heat moves from an object of higher temperature to an object of lower temperature |
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Definition
- Convection - Radiation - Evaporation - Conduction |
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Term
What is the mnemonic for the ways through which heat moves from an object of higher temperature to an object of lower temperature |
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Definition
Crafting radical exam conditioning |
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Term
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Definition
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Term
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Definition
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Term
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Definition
cooling from liquid to gas |
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Term
cooling from liquid to gas |
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Definition
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Term
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Definition
Transfer from air or liquid pass a surface |
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Term
Transfer from air or liquid passing a surface |
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Definition
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Term
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Definition
Direct transfer between touching objects |
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Term
Direct transfer between touching objects |
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Definition
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Term
What serves as insulation for animals? |
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Definition
Skin, fat, hair, feathers |
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Term
What are three features of the circulatory system? |
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Definition
- Vasodilation - Vasoconstriction - Countercurrent exchange |
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Term
What is the mnemonic for the three features of the circulatory system? |
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Definition
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Term
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Definition
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Term
What does vasodilation do for heat exchange? |
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Definition
Increases heat exchange with environment |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
What does vasoconstriction do for heat exchange? |
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Definition
Decreases heat exchange with environment |
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Term
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Definition
Transfer heat between blood flowing in opposite directions |
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Term
Transfer heat between blood flowing in opposite direction |
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Definition
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Term
What does countercurrent exchange do for the heat exchange? |
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Definition
Reduces heat exchange with environment, maintaining core body temperature |
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Term
What do animals do to benefit from evaporation as a thermoregulatory technique? |
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Definition
Sweating and panting in birds and mammals |
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Term
What are the the things used for thermoregulation by animals? |
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Definition
- Insulation - Circulatory system - Evaporation - Thermogenesis |
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Term
What is the mnemonic for the things used for thermoregulation by animals? |
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Definition
If tea could evaporate... |
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Term
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Definition
Metabolic heat production |
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Term
Metabolic heat production |
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Definition
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Term
What are the types of thermogenesis? |
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Definition
Muscle activity, shivering and non-shivering thermogenesis |
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Term
Nonshivering thermogenesis |
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Definition
Mitochondira generates more heat and less ATP by bypassing ATP synthase |
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Term
Where does nonshiveing thermogenesis occur? |
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Definition
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Term
Brown fat is found in abundance in... |
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Definition
Infants and hibernating animals |
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Term
Infants and hibernating animals have an abundance of... |
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Definition
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Term
Brown fat usually has what process? |
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Definition
Nonshivering thermogenesis |
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Term
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Definition
Part of the brain that controls negative thermogenetic feedback |
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Term
Part of the brain that controls negative thermogenetic feedback |
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Definition
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Term
What are the letters for Basal Metabolic Rate |
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Definition
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Term
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Definition
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Term
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Definition
Energy use by a resting adult with an empty stomach, not experiencing stress and at a comfortable temperature |
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Term
Energy use by a resting adult with an empty stomach, not experiencing stress and at a comfortable temperature |
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Definition
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Term
What factors of a person is Basal Metabolic Rate influenced by? |
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Definition
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Term
What is a more extreme response to stress? |
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Definition
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Term
Hibernation and Estivation are both types of... |
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Definition
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Term
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Definition
Short term slowing of metabolism in response to extreme heat, cold or inadequate food |
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Term
Short term slowing of metabolism in response to extreme heat, cold or inadequate food |
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Definition
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Term
What kind of animals usually go through Torpor? |
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Definition
Generally smaller animals |
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Term
What is an example of an animal experiencing Torpor? |
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Definition
A Hummingbird drops their night-time temperature to 25* C (45* F) |
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Term
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Definition
Long term torpor from cold and/or reduced food |
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Term
Long term torpor from cold and/or reduced food |
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Definition
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Term
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Definition
Torpor in response to hot, dry conditions |
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Term
Torpor in response to hot/dry conditions |
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Definition
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Term
To what temperature can the body nearly drop in hibernation? |
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Definition
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Term
The body can nearly drop to 0* C (32*F) in what? |
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Definition
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