Your answer is B.
Sharks belong to a class of fish called "chondrichthyes" (means "cartilage fish") characterized by being jawed fish with skeletons made of cartilage instead of bone.
Sharks and fish with bones (osteichthyes) both have gill slits, scales and paired appendages. So, that would rule out the other answer choices.
Hope that helps!
The same amount of force but less work is needed.
Collecting and burning natural gas.... could b wrong
Answer:
Wind
Explanation:
Gymnosperms can be described as plants which lack flowers and fruits.
As they do not have flowers to attract insects like the angiosperms, they can, however, transfer their pollen through the wind. As pollen is very light in weight hence, it can be transported by the wind. The pollen transported by the wind usually results in self-pollination as the wind is not able to take the pollen to long distances.