What is the difference between a hypothesis and a theory?
A.
A hypothesis has been tested, but a theory cannot be tested.
B.
A hypothesis is a possible explanation of a single event based on observation, while a theory is a unifying explanation based on many experiments and observations.
C.
A hypothesis is a description of events, but a theory explains why the events took place.
D.
A theory is a possible explanation of a natural event that has not been tested. A hypothesis is a question that cannot be answered through scientific methods.

Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.

Approximately percent of the energy created by cell metabolism is used by the body to carry on its normal functions, such as respiration, digestion, reproduction, muscular movement, circulation, and cellular regrowth.

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.