Question

a type of symbiosis in which one member of the relationship benefits with no effect on the other is:
a predation
b mutualism
c parasitism
d commensalism
e intraspecific competition

question 25
symbioses describes__.
a an interaction where one organism feeds on another.
b feeding levels based on positions in a food chain.
c interconnection of feeding relationships in a community.

Explanation:

For the first question: Commensalism is a symbiotic relationship where one organism benefits and the other is unaffected. Predation (A) is one organism hunting another; mutualism (B) is both benefiting; parasitism (C) is one benefiting at the other’s expense; intraspecific competition (E) is competition within a species. For the second question: Symbioses refers to close, long-term interactions between different species. Option A describes predation; B describes trophic levels; C describes a food web. The question is cut off, but if assuming a standard completion, symbioses describes close interactions between species (though options provided don’t fully match, but based on common context, if the intended answer is about close species interactions, but given the options as shown, likely a typo—however, for the first question, D is correct).

Answer:

First question: D. Commensalism
Second question: (Note: The second question's options do not fully match the definition of symbioses, but if forced to choose from the given options, there is no correct one. However, assuming a standard question, symbioses describes close, long-term interactions between different species.)

(Note: The second question's options are incomplete or incorrect as presented. For the first question, the answer is clear.)

First question answer: D. Commensalism