None; sharks don't have bones, instead, they have strong cartilage, much like what our noses are made up of
Given that a blowfly starts its lifecycle only if there are appropriate conditions met, one of which is suitable temperature, the correct answers as to what can impact the timing of the blowfly lifecycle is the air temperature.
I don't see how humans will impact when this fly is going to be born, so A and C are incorrect. Leaves also doesn't really affect blowflies, which is why D is incorrect as well.
Answer: c. If you cut an onion near a person, then his/her eyes will always begin to produce tears
Explanation:
Phototropism, Gravitropism, Thigmotropism, <span>Hydrotropism and Heliotropism</span>
