The answer is C. All of these different environments require a wider variety of adaptations.
Because they have some properties of life!
You need amino acids in your diet every day, since your body doesn't store excess amino acids consumed. If essential amino acids are missing from your diet, your body will start breaking down muscle tissue to access the amino acids that is contains so they can use them elsewhere.
Lamarck's Theory of Inheritance of Acquired Characteristics was about how organisms could change during their lifetime to adapt to their environments, and how those newly acquired characteristics could be passed down to offspring.
The appropriate answer is A. the density of ice would be greater than the density of liquid water and so ice would not float. Density can be defined as mass per unit volume. Any substance whose mass is great and occupies a relatively small volume is going to be dense.
Water expands by nine to ten percent when it freezes and this expansion increases the space occupied or the volume and so the density of ice is less than water.