A diagram consisting of rectangles whose are is proportional to the frequency of a variable and whose width is equal to the class interval
I think the Hagfish habitat is limited by the salinity of the environment. Hagfish are the most pleisiomorphic extant craniates, and based on the similarity of ionic concentrations between their internal milieu and sea water, they have long referred as a model for osmo- and ionoconformation.
Is it a question or ... no ?
The answer to the question is d. tissues
Number 4 the answer is 1
Number 6 the answer is 3
Hope this helps :)
