QUESTION 1 Large animals have high fitness for cold climates because? O because

Question

QUESTION 1 Large animals have high fitness for cold climates because? O because they can eat a lot of food O They have a low surface to volume ratio O They have high surface to volume ratio O because they can not hibernate during the year QUESTION 2 What would a population ecologist study? O Energy flow through abiotic and biotic components of a stream O the age distribution of white tailed deer in Union, NJ O How bluejay digest sunflower seeds vs. millet seed O how hurricane imma distributed energy fom the Caribbean to the coast of Florida QUESTION 3 How do water stressed plants increase the amount of water entering their roots?

Explanation / Answer

They have a low surface to volume ratio. {Heat radiates out through the surface, whereas the amount of heat stored depends on mass which directly correlates to body volume.} The age distribution of white-tailed deer in Union, NJ. { Population ecologists study the dynamics of species populations and their interaction with the environment.} Actively increase solute concentration in root cells to alter osmotic balance. { Water moves from a less concentrated solution into a more concentrated one, so increase in solute conc. in root cells facilitate osmosis of water into the cells.} 4 degrees C. This causes cold water to sink and ice to float. {At 4oC the thermal is not sufficient to break all the hydrogen bonds apart, but enough h-bonds have not formed to overcome the thermal energy and separate the molecules as much as in ice; as temp further lowers thermal energy decreases and more h-bonds form, thereby decreasing density. This is important because it allows aquatic life to exist in sub-zero climates as only the surface to water bodies become ice and liquid water exists below} Water has higher specific heat. { The specific heat capacity of a material determines how much heat energy is required to change the temperature of that material. Thus higher specific heat capacity means more heat has to be supplied to change the temperature}

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