Answer:
Snails and clams have hard shells while grasshoppers and dragonflies have none. Snails and clams have soft spines while grasshoppers and dragonflies have none.
Explanation:
The value of 
is -3. 
<h2>Procedure - Differentiability</h2><h3 /><h3>Chain rule and derivatives</h3><h3 />
We derive an expression for by means of chain rule and differentiation rule for a product of functions:
![\frac{d}{dx}[f(x)\cdot g(y)] = [f'(x)\cdot \frac{dx}{dx}]\cdot g(y) + f(x) \cdot [g'(y)\cdot \frac{dy}{dx} ]](https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D%5Bf%28x%29%5Ccdot%20g%28y%29%5D%20%3D%20%5Bf%27%28x%29%5Ccdot%20%5Cfrac%7Bdx%7D%7Bdx%7D%5D%5Ccdot%20g%28y%29%20%2B%20f%28x%29%20%5Ccdot%20%5Bg%27%28y%29%5Ccdot%20%5Cfrac%7Bdy%7D%7Bdx%7D%20%5D)
![\frac{d}{dx}[f(x)\cdot g(y)] = f'(x)\cdot g(y) +f(x)\cdot g'(y)\cdot \frac{dy}{dx}](https://tex.z-dn.net/?f=%5Cfrac%7Bd%7D%7Bdx%7D%5Bf%28x%29%5Ccdot%20g%28y%29%5D%20%3D%20f%27%28x%29%5Ccdot%20g%28y%29%20%2Bf%28x%29%5Ccdot%20g%27%28y%29%5Ccdot%20%5Cfrac%7Bdy%7D%7Bdx%7D)
(1)
If we know that 
, 
,<em> </em>
,<em> </em>
and
, then we have the following expression:
The value of is -3.
To learn more on differentiability, we kindly invite to check this verified question: brainly.com/question/24062595
<h3>Remark</h3>
The statement is incomplete and full of mistakes. Complete and corrected form is presented below:
<em>The point (-2, 4) lies on the curve in the xy-plane given by the equation </em>
<em>, where </em>
<em> is a differentiable function of </em>
<em> and </em>
<em> is a differentiable function of </em>
<em>. Selected values of </em><em>, </em>
<em>, </em><em> and </em>
<em> are given below: </em><em>, </em><em>, </em><em>, </em><em>. </em>
<em />
<em>What is the value of </em><em> at the point </em>
<em>?</em>
There has been several evolution overtime. The one that tells how we understand the identities of Superman suggests that society's view of identity is known to be subjective.
- Here, the society takes identity at face value instead of the use of other form of evidence.
<h3>Why a subjective view?</h3>
From the study of the Superman's secret identity and its evolution, it therefore shows how the society really see the idea about identity.
Note that Clark Kent in the story has the same resemblance to Superman but they are of two identities types.
People often can see and accept one of the identity type they conform to them and ignore any kind of anomaly such as that of superman. So we can say that they are two different persons living two different lives.
learn more about evolution from
brainly.com/question/16680430
