Which of the following statements about helminths is FALSE?
A) They are heterotrophic.
B) They are multicellular animals.
C) They have eukaryotic cells.e
D) All are parasites.
E) Some have male and female reproductive organs in one animal.
D
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Genomic studies of bacteria reveal that _____
A) only a few bacterial species have plasmids B) there are usually three copies of each gene present within a bacterial genome C) there are many genes of unknown function D) there is almost no difference between the genomes of diverse bacteria
This hormone is secreted from the posterior pituitary and regulates muscle contraction.
A. antidiuretic hormone B. prolactin C. adrenocorticotropic hormone D. oxytocin E. epinephrine
Thermoduric mesophiles are often responsible for spoilage of improperly canned foods
Indicate whether the statement is true or false
In the absence of geographic barriers, ________ speciation may occur when reproductive isolating mechanisms develop between two populations
A) allopatric B) extrinsic C) sympatric D) ecological