I think the answer is d ... hope this helps
ANSWER:
Problem faced include; habitat loss and degradation, disease outbreak, invasive species, pollution, over‐exploitation/overfishing, climate change etc.
EXPLANATION:
Problem:
Habitat loss and degradation, disease outbreak, invasive species, pollution, over‐exploitation/overfishing, and climate change are notable problems experienced by freshwater and marine fishes.
Solution:
Anthropogenic activities and stressors that rapidly threaten freshwater and marine fishes are curbed through legislation and other means to prevent extinction of fishes.
Through conservation programs that plans for individual species to more species of entire faunas of a particular location also boost population size and prevent hunting of threatened or endangered species in both realms.
Overtime, genetically modified fishes which can develop resistance to diseases are introduced to the realm.
Moreso, waste channels through which pollutants gets into the water bodies are well-treated for safety of fishes.
The answer is B . two atoms exchange electrons and become ions
<span>Therapeutic cloning means that it could be used to heal people so the best way to benefit the society while doing this would be to help cure diseases. Example would be cloning body parts and testing diseases on them and then developing medication that can help against them. Also you could clone exact body parts that fit you so you could have a new kidney or lungs if necessary that fit you perfectly.</span>
