Yeti crabs are unique organisms that live in the oceans along hydrothermal vents. Hydrothermal vents are on the ocean floor and emit hot magma from the mantle in the Earth. These vents are so far down in the ocean that no light can reach them, but this does not bother the yeti crab as it has no eyes. The crabs eat bacteria that grow on their own body. Their arms are covered in long hairs that they wave around in the water to provide the bacteria with additional nutrients.
Which of the following are adapations of the yeti crab that allow it to survive in its environment? (choose two)
Yeti crabs are unique organisms that live in the oceans along hydrothermal vents. Hydrothermal vents are on the ocean floor and emitt hot magma from the mantle in the Earth. These vents are so far down in the ocean that no light can reach them, but this does not bother the yeti crab as it has no eyes. The crabs eat bacteria that grows on their own body. Their arms are covered in long hairs that they wave around in the water to provide the bacteria with additional nutrients.
Individual Yeti Crab
Picture taken of a population of Yeti Crabs surrounding hydrothermal vents.
Which of the following are adaptations of the yeti crab that allow it to survive in its environment? (choose two)
no eyes, therefore they cannot see
hairs on arms allow more nutrients for bacteria
claws for catching large prey
hairs on body allow the crab to store heat
relies on food grown by photosynthesis
The correct adaptations of the yeti crab that allow it to survive in its environment are:
1) No eyes: The lack of eyes is an adaptation because there is no light in the deep ocean where they live, so sight is not necessary for their survival.
2) Hairs on arms: The long hairs on the arms of the yeti crab are used to wave around in the water, providing additional nutrients for the bacteria that grow on their bodies. This adaptation allows them to obtain a food source in their dark and nutrient-poor environment.