Biology, 21.04.2020 16:36, coolman5999alt

As body size increases in animals, . Select one: a. the surface-area-to-volume ratio decreases b. reproduction becomes limited to terrestrial environments c. there is greater variability in metabolic rate d. migration to tropical areas becomes necessary for thermoregulation e. it becomes more difficult to conserve body warmth in cold environments

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answered: denaemarie02

: a. the surface-area-to-volume ratio decreases

Explanation:

This is the normal physiological relationship of organisms.Small animals have large surface area to volume ratio, because of limited area exposed to the surrounding environment. However, larger animals with complex body structure have small area to volume ratio. This explains the reasons why larger animals needed to develop efficient body organs and mechanism for osmoregulatory functions for survival. microvilli in the intestine,convoluted walls of the capillaries, formation of root hairs and capillaries, the nepron tubules etc.

For example when exposed to cold environments the low surface area to volume ratio is an adaptation to conserve warmth, in large animals as limited heat is lost to the surrounding environment via evaporation from the body surfaces. Conversely this is at disadvantage to lower size animals with large surface area to volume ratio, because,heat is evaporated through the large surface area exposed.They are therefore very active to generate large amount of heat energy to make up for this.

answered: Guest

Environmental science studies the interactions between the physical, chemical, and biological components of the environment, including their effects on all types of organisms. earth science (also known as geoscience), is an inclusive term for all sciences related to earth (geology, meteorology, oceanogr maphy, etc). although environmental and earth science cover essentially the same material, environmental science places greater emphasis on the biological realm, while earth science places greater emphasis on the physical realm. environmental and earth science study the interactions of four major systems or “spheres” (figure 8.6). the geosphere consists of the core, mantle and crust of the earth.the atmosphere contains all of the earth’s air and is divided into troposphere, stratosphere, mesosphere, thermosphere and ionosphere.the hydrosphere contains all of the solid, liquid and gaseous water on earth, extending from the depths of the sea to the upper reaches of the troposphere where water is found. ninety-seven percent of the hydrosphere is found in salty oceans, and the remainder is found as vapor or droplets in the atmosphere and as liquid in ground water, lakes, rivers, glaciers and snowfields. the biosphere is the collection of all earth’s life forms, distributed in major life zones known as biomes: tundra, boreal forest, temperate deciduous forest, temperate grassland, desert, savannah, tropical rainforest, chaparral, freshwater, and marine.although the four systems have their unique identities, there is substantial interaction between them. environmental scientists study the effects of events in one sphere on the other spheres. for example, a volcanic eruption in the geosphere may cause profound direct and indirect effects on the hydrosphere, atmosphere and biosphere as follows: example 1 (volcano) on may 18, 1980, mount saint helens, in the state of washington, erupted. this event altered the surrounding environment, and provided scientists with an opportunity to study the effects of volcanic eruptions on the geosphere, hydrosphere, atmosphere and biosphere. such studies are vital because volcanic eruptions will continue to occur, and will have increasing impact on humans as people continue to settle lands closer to dormant volcanoes. the following are but a few of the myriad of interactions resulting from a volcanic

answered: Guest

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