The answer would be "C. Interbreeding between two populations would be impossible" Species become a species when it can reproduce with another animal of the same species and produce fertile offspring, while it can't do this with other animals.
Oil Coal and Natural Gas are the fossil fuels the USA has the most reserves of. Given that only one of them is on the answers Coal is the correct answer.
Both dolphins and whales still have their hip (pelvic) bones present. These bones connect and transfer the weight of the trunk to the lower limbs.
Thus, <em>the presence of the pelvic bone may indicate that whales had ancestors that walked on land</em>.
True
Because one of the environmental catastrophes is dust bowl
