10. What can contaminate a river as a result of dredging?
a. potash
C. placer deposits
b. seawater
d. muddy sediments

Why do we perceive objects as retaining their brightness under different lighting levels?

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

The direct energy source that drives atp synthesis during respiratory oxidative phosphorylation is