Biology, bio=life, logy is study
Answer:
Option A.
Explanation:
Analogous structures are similar structures that evolved independently in two living organisms to serve the same purpose.
Homologous structures are organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor. These structures do not have to look exactly the same, or have the same function
Vestigial structures no longer carry out any function.
No more than five trophic levels are present in an ecosystem, most have only 4.
Neither of these is true the density of water goes down was it freezes
