Clown fishes form symbiotic relationships with members of this group of cnidarians:
a. siphonophores.
b. hydrozoans.
c. anthozoans.
d. scyphozoans.
e. bryozoans.
C
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The organism most frequently associated with various infections in humans is:
a. Bordetella. b. Oligella. c. Achromobacter. d. Roseomonas.
Four of the five choices listed below are
characteristic of meiosis. Select the exception. a. involves two divisions b. reduces the number of chromosomes c. results in producing genetically identical cells d. produces haploid cells e. involves pairing of homologous chromosomes
In the process of scientific inquiry one must make a hypothesis and a prediction, what is the difference between the two?
A. A hypothesis is the question the experiment is trying to answer and a prediction is a general statement or default position that there is no relationship between two measured phenomena. B. A prediction leads to the formulation of a hypothesis. C. A hypothesis and a prediction are the same thing D. A hypothesis is an explanation that makes a testable prediction and predictions describe observable outcomes of particular conditions.
Each microscope has its advantages and disadvantages. Which microscope has allowed scientists to conduct systematic observations and provided them with the closest look into the structure of cells?
A) stereomicroscope B) electron microscope C) compound microscope D) phase contrast microscope