GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

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 warmer, so the percentage of female turtles would decrease.
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: -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.

Detailed explanation-4: -The group of eggs is called a clutch. They usually lay 100-125 eggs per nest and will nest multiple times, about two weeks apart, over several months. As soon as the eggs hatch (roughly 2 months later), the hatchlings dig out of their nest. This process generally takes a few days.

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