You didnt exactly put in any answer options...
But here is my answer: Comparing a desert to Mars, i would say that
A desert has oxygen
And mars has carbon dioxide
A desert has sand
Mars has a rocky surface
Mars is a planet
A desert is not
The things i could think of that a desert and planet mars can relate to...I would say they both have heat and both sometimes have dust storms.
A. They share a common ancestor because otherwise they would not have similar arrangements of bones. It doesn't matter that humans can't fly
The answer is B. they embody the idea of descent with modification.
improved water habitats for human recreation.
