How has the discovery of DNA affected the classification of protists? Select three options.

Many scientists want to get rid of the kingdom Protista.
Some organisms have been moved out of the kingdom Protista.
Classification is generally easier and less complex.
It has been determined that protists share a common ancestor.
Some organisms have been moved into the kingdom Protista.

Which could be a pathway of food through an ecosystem

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !

All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .