Closely related species often look similar but have courtship rituals that are slightly different to ensure that mating occurs between member of the same species. The correct option among all the options that are given in the question is the third option or option "c". This is to preserve the specialties that each species have.
Answer:
mass and distance
Explanation:
As the two objects get further away, the distance between them increase and the strength of the gravitational force decreases. If the distances decreases, the force will increase. The bigger the object, the greater the force.
cars put pollution in the air and it harms our lungs same with smoking
mark brainliest;)
<h2>The answer to 9 is <em><u>slippage of a block of material moving along a curved surface</u></em></h2>
