Brain weight b as a function of body weight w in fish has been modeled by the power function b = 0.007w2/3, where b and w are measured in grams. a model for body weight as a function of body length l (measured in centimeters) is w = 0.12l2.53. if, over 10 million years, the average length of a certain species of fish evolved from 16 cm to 23 cm at a constant rate, how fast was this species' brain growing when the average length was 17 cm? (round your answer to four significant figures.) g

nanogram/year

Explanation:

The given equation for body weight as a function of length

Differentiating both sides of the equation with respect to length , we get -

------Equation (A)

As we know -

substituting the value of in equation (A), we get -

----Equation (C)

On differentiating both side of under given equation, we get -

-----Equation (D),

Substituting the value of W wrt t in Equation (D), we get -

nanogram/year

an adaptation is a change or process by which an organism takes to be better suited for its environment. for example; migration is a behavioral adaptation, this is needed because birds are not built to last extremely cold climates. there are different adaptations because there are different species needing to adjust to different things, bears don't migrate; they hibernate.