The answer is b the thumb has a mutation
Answer:
Major threats to freshwater fishes and other freshwater biodiversity, include: habitat modification, fragmentation, and destruction; invasive species; overfishing; environmental pollution; forestry practise; and climate change.
The type of protein that is often used to carry other molecules would be globular proteins. They <span>play many biological roles, including acting as enzymes, hormones, immunoglobulins, and transport molecules. Hope this answers the question.</span>
...require a living host cell to survive.