adaptations of Sea Cave Creatures

1. What are some typical adaptations for these animals, and why?
- ostracods have small eyes
- senses that don't need light to find food
- lack of skin pigment

2. Why is oxygen NOT Plentiful in caves, and how do creatures deal with the lack of oxygen?
- Because there is no photosynthesis and very limited circulation.
- They have sensory body parts that do not need light and are able to swim slowly.
- Low metabolic rates.

3. Why do adaptations occur?
- They occur randomly and may provide an advantage or maybe not.

http://www.google.com/search?q=ostracods+in+aquarium&hl=en&safe=active&client=safari&tbo=d&source=lnms&tbm=isch&sa=X&ei=9zQZUddGha2KAqbfgbAC&ved=0CAkQ_AUoAQ&biw=1024&bih=672&surl=1#biv=i|1;d|sQV5o-Ednki28M:

http://oceanexplorer.noaa.gov/facts/cave-adapt.html