Random dispersion is rare compared to clumped dispersion.
Answer the following statement true (T) or false (F)
True
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In a double-blind test the treating physician knows who is getting the actual treatment
Indicate whether this statement is true or false.
Scientists believe that mitochondria may have evolved from ancient bacteria because ____
a. both are surrounded by a cell wall b. both have their own DNA and ribosomes c. the shapes and size of both are exactly the same d. both have cristae to increase surface area e. both have five chromosomes
The chromosomal structure to which spindle fibers attach during the mitotic divisions is the
A) chromatid. B) centrosome. C) kinetochore. D) metaphase plate. E) centromere.
Which animal does not employ protective armor for predator defense?
A) armadillo B) beetle C) scorpion D) porcupine