Examlex
What is the name of the paired excretory organs found in most body segments of segmented worms?
Filler Items
Items included in a questionnaire measure to help disguise the true purpose of the measure.
Automated Procedures
Tasks or operations conducted automatically through the use of technology, software, or machinery, often requiring minimal human intervention.
Experimenter Bias
A form of research bias where the researcher unintentionally influences the results of a study through their expectations or conduct.
Balanced Placebo Design
A balanced placebo design is an experimental approach used to study behavior under the influence of a drug when participants are misinformed about their drug status to remove psychological effects.
Q9: sea urchins and sand dollars<br>A)Petromyzontoidea<br>B)Amphibia<br>C)Crinoidea<br>D)Metatheria<br>E)Chondrichthyes<br>F)Actinopterygii<br>G)Urochordata<br>H)Aves<br>I)Myxinoidea<br>J)Holothuroidea<br>K)Cephalochordata<br>L)Eutheria<br>M)Ophiuroidea<br>N)Testudines<br>O)Squamata<br>P)Asteroidea<br>Q)Prototheria<br>R)Echinoidea<br>S)Hemichordata
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