I prentice that it might kill me and effect me
I'm pretty sure it is refraction <span />
What types of factors should be investigated?
D. Both abiotic and biotic factors in their ecosystem
Abiotic factors are non-living parts of an environment, while Biotic factors are the living parts of an environment. That being said, you should investigate both when the population of jellyfish show a sharp decline, in order to find out the cause in the decline of jellyfish.
A species is a group of one kind or breed for example all of mankind or all the breeds of dogs would be considered as a species. the answer would be what each of these have in common which is that they are able to mate and produce offspring
Due to the energy lost as heat
