Answer:
<h2>Parasitism.</h2>
Explanation:
Parasitism, in biology, is defined as a relationship between different species, formed by a parasite and a host. So, basically the parasite lives in or on the host, causing it harm. <em>Parasites can be describe as predators that eat less than one prey unit</em>, that is, they feed them selves slowly, they don't kill the prey instantly as actual predators do.
So, in this case, we are talking about leeches, which are defined as parasitic worms which lives in freshwater environments. They feed themselves by sucking blood from the host.
<em>Therefore, the relation between these two species is Parasitism.</em>
The energy of a photon is given by:
where h is the Planck constant and f is the photon frequency.
We know the energy of the photon,
, so we can rearrange the equation to calculate the frequency of the photon:
And now we can use the following relationship between frequency f, wavelength
and speed of light c to find the wavelength of the photon:
The inter molecular force of attraction between molecules decreases with increase in temperature. Because due to increase in temperature, the kinetic energy of the molecules increase and they starts moving with higher velocity.