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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.
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- A defence mechanism is how the sea cucumber fires its internal organs at attackers. How would this defence mechanism have evolved over time due to pressure from predation and/or competition? Please explain in details.In terms of feeding strategies, do you think a large priapulid is more efficient than a small one? Why or why not?The diversification of Cichlids after the formation of Lake Malawi over 2 million year ago is an example of ___________ (fill in the blank
- define interspecific competition. explain how insects reduce intraspecific competition between adults and offsrpings.Sea urchins live in marine communities that include a variety of species living in close proximity. Most of these species, including sea urchins, have external fertilization, a reproductive strategy that potentially has a low probability of sperm and egg contact. List several adaptations of sea urchins that help ensure successful reproduction. Explain.What do you think is the adaptive value of this bizarre behavior when the urchins are actively foraging on their feeding ground? Explain in terms of different adaptive behaviors to maximise growth, survival & other traits that contributes to the fitness of the species in a highly variable coastal environment. *
- Malaria is a disease in humans caused by infection with a protist, a eukaryotic organism. What describes the interaction between humans and the organism causing malaria? 1.Predation2. Parasitism3. Commensalism4. MutualismCreate a food web for these animals !!!Many species of invertebrates (e.g., flatworms, roundworms,arthropods) are parasites of other animals. List several advantages,as well as challenges, inherent in a parasitic lifestyle.
- Describe how increasing stress to the ocean would affect a food chain containing zooxanthellae, corals, parrotfish, and sharks.While living in and on the host species,the animal parasite has evolved certain adaptations.Describe these adaptions with examples.In Dictyostelium, cheats must modify their behavior when in a chimera to take advantage of their partner. A. depends on whether they perform direct reciprocity B. FALSE C. depends on whether they perform indirect reciprocity D. TRUE