The sex of sea turtle offspring is determined by the temperature of the sand during development. Temperature over 87° Fahrenheit will result in female offspring. Temperatures below 87° Fahrenheit will result in male offspring. Scientists are concerned about the effects of climate change on sea turtle development. One of these effects is the warming of environments.

In 2-5 sentences, describe what change you'd expect to see in the distribution of sea turtle traits over time, if any. Explain whether it would be caused by a genetic adaptation, a mutation, or the environment.

(4 points)

Short Answer Rubric (4 points)
Points Awarded Criteria
4
The answer is very clear.

The answer is fully supported by details.

There may be a few errors in grammar, usage, or mechanics. Errors do not interfere with meaning.

3
The answer is mostly clear.

The answer is supported by mostly relevant details.

There are a few errors in grammar, usage, or mechanics. Errors do not interfere with meaning.

2
The answer is somewhat clear.

Details are weak or not related.

There are some errors in grammar, usage, and mechanics. Errors interfere with meaning.

1
The answer is not clear.

There are few or no supporting details.

There are many errors in grammar, usage, and mechanics. Errors interfere with meaning.

0 The question is not answered.

1 answer

As climate change leads to higher sand temperatures, we can expect a shift in the distribution of sea turtle traits, specifically a majority of female offspring due to the temperature-dependent sex determination mechanism. Over time, this could result in diminishing male populations, potentially skewing the sex ratio significantly. This change would primarily be driven by environmental factors rather than genetic adaptation or mutations, as it directly stems from altered nesting conditions linked to rising temperatures. If these trends continue, sea turtle populations might face challenges related to breeding and genetic diversity.