Question

this handout supplements the i contain multitudes film nature’s cutest symbiosis: the bobtail squid. 1. the bioluminescent glow of the light organ helps the bobtail squid a. camouflage itself on the sandy ocean floor. b. signal and attract mates. c. hide from predators and prey. d. illuminate the ocean floor so it can locate prey. 2. the squid light organ has structural and functional similarities to an eye, including the ability to detect light. explain why it is important to the squid’s survival to be able to detect light as well as emit it. 3. mutualism is defined as a close, prolonged association of two or more species that is of benefit to all participants. explain how the relationship between the bobtail squid and vibrio fischeri is an example of mutualism. defend your claim with evidence.

Explanation:

1. The bioluminescent glow helps the bobtail squid hide from predators and prey by counter - illumination, matching the light from above so it is less visible.
2. Detecting light allows the squid to sense the presence of predators, prey, and changes in its environment. Emitting light helps with camouflage and potentially communication.
3. The bobtail squid provides a protected environment and nutrients for Vibrio fischeri bacteria. In return, the bacteria produce bioluminescence for the squid, which helps with camouflage and survival.

Answer:

1. c. hide from predators and prey.
2. Detecting light helps the squid sense its environment for predator - prey detection and other environmental changes. Emitting light aids in camouflage and possibly communication, both crucial for survival.
3. The squid offers a habitat and nutrients to Vibrio fischeri. The bacteria provide bioluminescence for the squid's camouflage, which is beneficial for the squid's survival. This shows a mutually - beneficial relationship as both organisms gain something essential for their well - being.