C: primary Consumer
<em>primary consumers</em> are typically animals that eat plants aka herbivores.
<em>producers </em>would be plants
<em>secondary consumers </em>are typically ones that eat meat or eat meat and plants aka omnivores.
<em>decomposers, </em>I believe are like your fungus or anything that feeds off of dead organisms or eat the waste of that organism.
Hopefully this helped. I remember learning about this in college.
LeveneChargaffWatson and CrickNirenberg and Matthaei
Answer:
In my opinion ...it is option A:)
The correct answer is option B. The scientists were studying if the mud snails can reproduce both sexually and asexually. The characteristics in the study included parameters such as the mating season, number of offspring, effect of environmental stress conditions and lack of mates. Out of all the parameters being studied can affect asexual reproduction in the mud snail but lack or presence of mates is a parameter required to be studied to determine the mode of reproduction i.e. sexual or asexual because need for mates or mate dependent reproduction occurs in case of sexual reproduction.