The diagrams below show the anatomy of the eye in four different animals. Select the two that provide the best evidence of inheritance from a
shared ancestor.
retina
lenses
retina
nerve
fibers
nerve
fibers
r
lens
lens
retina
retina
nerve
fibers
nerve
fibers

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

For a to be healthy, it has to have lots of different kinds of plants and animals. all of the different types of plants and animals in an ecosystem. name four types of ecosystems from those listed in the video. b) c) d) most living things live here. all living things depend on how an ecosystem like a game of sticks? why should we build new buildings on existing land? name four extinct species from those listed in the video. b) c) d) the best way to wipe out a species is to the largest ecosystem in the world is this percent of the world is covered by water. how many of all species in the world live in the ocean? list five things you can do to increase biodiversity. b) c) d) e) how many species are we losing per hour?

Which of the following is not a defining characteristic of plants?