Answer:
Bacteria and protozoa are the examples of unicellular organisms.
Explanation:
Unicellular are the organisms which madeup of single cell such as bacteria and protozoa. Bacteria are prokaryotic organisms i. e. no true nucleus. Some bacteria make their own food from photosynthesis and some bacteria are parasites and other are decomposers.
Protozoa are eukaryotic organisms which are heterotrophic in nature i. e. feed on other organisms. Amoeba and paramecium are the examples of protozoa.
A strictly fermentative bacterium produces energy by glycolysis only.
Google wil give more information
Answer:
Is the benefit worth the cost?
Explanation:
Environmental policies application has to lead to some economic cost.
When coming up with this policies, the effect that this policies shall have towards environmental protection shall be considered.
The cost and economic effect that this policies shall cause should also be looked at.
If a policy causes insignificant change towards environmental protection and at the same time the costs are too high, then the policy should be dropped.
If a policy has got significant impact and costs less, the it should be taken.
The answer could be either B or D. Both are important for marine biology. I would have to say D is the best answer though!
