Exchange of gases in fish is very efficient because of: the large surface area of the gills. the large surface area of the blood capillaries in each gill filament. the short distance required for diffusion – the outer layer of the gill filaments and the capillary walls are just one cell thick.
The answer would be genes.
Answer:
what are the following answers?
Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose.
The term “analogous structures” comes from the root word “analogy,” which is a device in the English language where two different things on a basis of their similarities.