I think it’s respiratory but I’m not sure
X is mathematically an unknown.
Answer:
mike could have smokeed and mack could have done alot of atheletic stuff they also could have been born with differneent genes
Explanation:
The type of fertilization that one would expect to find in this specie is EXTERNAL FERTILIZATION. External fertilization is the type of fertilization in which the male sperm fertilize the female eggs out of the female's body. This type of fertilization usually occur in aquatic environment.
