Certain lizards dig burrows to avoid the heat of the day and emerge at night to hunt. When there are large numbers of these lizards, their burrows may intersect with each other. Raccoons are beginning to prey mainly on these lizards. The raccoons catch the lizards as they emerge from their burrows. Which change could occur if this continues?

Lizards that use interconnected burrows to avoid raccoons will likely survive more than those who do not use interconnected burrows and they will pass this trait to their offspring which will increase this trait in the population and will help the trait to become more common in the population.

As this trait will become more common than less lizards would be picked by raccoons which will the group living of lizards. This process of selecting more adapted individuals in a population is called natural selection.

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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.

lunar landing mission. apollo 11 was the first manned mission to land on the moon. the first steps by humans on another planetary body were taken by neil armstrong and buzz aldrin on july 20, 1969. the astronauts also returned to earth the first samples from another planetary body.

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