C because fish take many more years to fossilize due to being contained/living in water their bodies are harder to break down
This is a case of both Rh incompatibility and ABO incompatibility. Since the first pregnancy is normal but the second one resulted in hemolytic disease; it means that in the first pregnancy, the baby was Rh negative which lead the Rh positive mother to produce antibodies against Rh negative blood, which is noted in the second pregnancy leading to hemolytic disease. There may also be a form of ABO incompatibility. The correct answer is that both of her children are type A, Rh negative, and the mother is a type B, Rh positive.
If you were talking about an adult human male, then they can<span> sometimes </span>produce<span> over 100 million </span>sperm<span> per day.</span>
Answer:
In order to propose a hypothesis, there is a need to first see the function of gills in fishes. The gills of fishes comprise blood vessels that exhibit inherited tendencies of getting oxygen out of the water, which was consumed by fishes from their mouths. These gills also comprise thin walls, and when water moves over these walls of blood vessels, the oxygen from water moves into the blood, and then this oxygen-enriched blood goes to various organs.
Thus, one of the hypotheses in the given case, can be the number of blood vessels, which are found in the gills of the mentioned freshwater fish to be higher in comparison to the blood vessels found in the normal fishes, and apart from this, the surface area of the thin walls, which are found in the gills is also more in the new species of freshwater fish.