Answer:
Commensalism only occur among biotic factors
Explanation:
Abiotic factors are non-living factors that interacts with the biotic factor within an ecosystem. Commensalism is an association between two organisms in which one benefits and the other derives neither benefit nor harm.
From the above definition of commensalism, it is clear to note that it only involves two organisms rather than non-living organisms, hence; commensalism involves only biotic factors
<h2>Answer:</h2>
To treat the discharge of untreated waste from a type i or type ii marine sanitation device the following steps should be taken into account;
The “Y” valve must be secured to prevent accidental illegal discharge. This can be done by placing a lock or non-reusable seal on the “Y” valve or by taking the handle off the “Y” valve. Only treated sewage from an approved MSD may be discharged directly overboard.
Answer:
it floats
Explanation:
The reason why it floats is because of the density of the ice cube
Hydrogen isn’t one of the primary macronutrients
