Halophiles are organisms that
a salt concentration of at least 0.2 m
high sugar concentration
the addition of halogens
all of the above

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Amoeba sisters video recap pedigrees

Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead,sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities