Changes in the environment result in
a.
geologic eras
c.
plate tectonic changes
b.
physical changes in species
d.
all of the above

Acquired mutations can result from radiation pollution toxins inheritence select all that apply

Which component in a graph indicates an independent factor? a. y-axis b. x-axis c. scale

Which of the following is likely not involved in this example of ecological succession? a) the rotting remains of plants add to the fertility of the soil. b)the soil becomes so fertile that eel grass is replaced by other plant species. c) the roots from plants stabilize the sediment, keeping it in place. d) the concentration of salt becomes so high that all plant life is destroyed.