Question

Sea turtles have environmental sex determination: more males are born at low temperatures and more females at high temperatures. Presently, females bury their eggs at a depth in the sand where both sexes are produced at nearly equal frequencies. Which scenario would not be a realistic response of turtles to climate change and global warming?

a. Adoption of chromosomal sex determination in areas of increased temperature
b. Endangerment or extinction as turtles produce female skewed populations
c. Adaptation by nesting turtles to build nests of different depths, maintaining temperature profile and sex ratio
d. Migration of populations to cooler regions, maintaining temperature profile of nests and the sex ratio
e. Adaptation by turtle populations, in which the temperature threshold for producing female embryos shifts upward.

Answer 1

The scenario that would not be a realistic response of turtles to climate change and global warming is adopting chromosomal sex determination in areas of increased temperature. Hence, a) is correct.

Step-by-step explanation:

The scenario that would not be a realistic response of turtles to climate change and global warming is option a - adoption of chromosomal sex determination in areas of increased temperature.

Currently, sea turtles exhibit temperature-dependent sex determination, where cooler temperatures produce more males and warmer temperatures produce more females. This adaptation allows turtles to maintain a balanced sex ratio when burying their eggs at a specific depth in the sand.

However, adopting chromosomal sex determination in areas of increased temperature would not be a realistic response as it goes against the turtles' natural adaptation to temperature differences.