In the root nodules of legumes, nitrogen-fixing bacteria form a mutualistic relationship with the plants. Which of the following observations best supports the claim that this
relationship is an example of mutualism?
O The bacteria use nutrients provided by the plant for food, eventually leading to the death of the
plant.
O The bacteria and the plant both require the same limited resources of water and soil to survive.
O The un B bacteria obtain carbohydrates from the plant, and provide nitrogen in a usable form for the
plant.
O The bacteria provide nitrogen in a usable form for the plant, and receive no benefit from the
plant.

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Explanation:

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.