Throughout Earth's history, there have been warmer periods and colder periods. These
temperature changes have had significant impacts on the planet
Choose the statement below that best describes the difference between historical temperature
changes and current temperature changes.
O Historical temperature changes were abrupt while current changes have been very gradual
o
Current temperatures have been steadily rising for the last 250 years, and historically,
temperatures both rose and fell
O Current warming of the planet is occurring faster than any other known temperature increase
In the past, temperature change was attributed to changes in the atmosphere, while today much
of it is attributed to the sun's waning energy output
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Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.
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Throughout Earth's history, there have been warmer periods and colder periods. These
temperature c...
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