Answer:
a) diversity
b) natural selection
c) living species
d) ancestral species
e) heritable variations in a population
f) greater reproductive success
g) an evolutionary adaptation
Darwin proposed a mechanism for evolution: natural selection, in which heritable traits that help organisms survive and reproduce become more common in a population over time.
See attached picture
I would say landslide because it does cause because of the lost of friction.
Human forelimbs is used for a variety of functions, such as for eating.
Similarities: They are all made from the same basic anatomical structure classified as homologous structures.
They all have this structure inherited from a common ancestor.