2. According to modern evolutionary theory, genes responsible for new traits that help a species
survive in a particular environment will usually*

1not in change in frequency
2decrease rapidly in frequency
3increase in frequency
4decrease gradually in frequency

Organisms are classified, or grouped into categories, based on similarities in their characteristics and/or evolutionary relationships. the study of how organisms are classified is known as

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.

Why were the results whit just water so much different than the trials with the detergent ?