EVERYDAY SCIENCE

SCIENCE

EARTH SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Temperature affects the development of sea-turtle eggs. Eggs that are incubated at warmer temperatures are more likely to become females. Eggs incubated at cooler temperatures are more likely to become males. How would higher atmospheric carbon dioxide concentrations MOST likely affect sea turtle populations?
A
Earth’s climate would be warmer, so the percentage of female turtles would increase.
B
Earth’s climate would be cooler, so the percentage of female turtles would increase.
C
Earth’s climate would be cooler, so the percentage of female turtles would increase.
D
Earth’s climate would be cooler, so the percentage of female turtles would decrease.
Explanation: 

Detailed explanation-1: -temperature affects the development of sea-turtle eggs. eggs that are incubated at warmer temperatures are more likely to become females. eggs incubated at cooler temperatures are more likely to be males. how would higher atmospheric carbon dioxide concentrations most likely affect sea turtle populations?

Detailed explanation-2: -The temperature of the developing eggs is what decides whether the offspring will be male or female. This is called temperature-dependent sex determination, or TSD. Research shows that if a turtle’s eggs incubate below 27.7° Celsius (81.86° Fahrenheit), the turtle hatchlings will be male.

Detailed explanation-3: -For this reason, they are particularly sensitive to ambient temperature and seek to occupy warmer waters, typically in the tropical and temperate zones and ideally over 20ºC. Exposed to temperatures below 10ºC, sea turtles may develop a condition called cold-stunned, a kind of hypothermia, if not treated.

Detailed explanation-4: -Today, there are many additional anthropogenic pressures to cope with as well. Nevertheless, sea turtles have evolved flexible life history traits and may adapt to climate change through shifts in the distribution of their nesting areas or through changes in nest site selection, nesting season, and nest depths.

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