Prokaryotes are organisms that do not have defined nuclei in their cells. Eukaryotes are organisms that have cells with membrane-bound nuclei.

In which of the following kingdoms are prokaryotes found?
A.
Plant and Animal only
B.
Eubacteria, Arachea, Protist, and Fungus only
C.
Protist, Fungus, Plant, and Animal only
D.
Eubacteria and Archae only

Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.

In which part of the body is a ball-and-socket joint found?

When the solution concentration on the outside of a cell is greater than thesolution concentrate on the inside of the cell, what type of solution is the cellwithin?