Answer:
platypus and a duck has similar DNA.
Explanation:
There are certain similarities which are present between duck and platypus such as structure of beak or mouth, webbed feet and laying eggs in order to continue its generation. These three characteristic make the platypus and duck similar to each other. There is also one major difference is present which is that the platypus is the only mammal which lay eggs and feed baby with their own milk. Its tail structure is also different from duck.
Viruses are similar to living organisms because both contain hereditary material (RNA or DNA), and both reproduce. Viruses are different from living organisms because they do not use energy to grow, and do not use energy to respond to their surroundings.
All ions that are atoms with a positive charge - protons.
All ions that are atoms with a negative charge - electrons.
All ions that are atoms with a neutral charge - neutrons.
Answer:
The motion of an object is defined by its change in position and direction.
Explanation:
Motion is the action of changing location or position. Motion is usually brought about by an external force.
Kinematics is the study of motion alone without regard to the forces or energies involved.
The various types of motion include:
Translational motion : This is motion that occurs along a straight line. For example, a car travelling on a straight road.
Rotational motion: this motion that occurs in a circular path. For example, movement of the earth round the sun.
Oscillatory motion: this is a periodic or to and fro motion that occurs between two points. For example, a swing or a simple pendulum.
Random or zigzag motion: This is motion that occurs in no particular pattern or direction. for example, the movement of dust particles.
