25. The primary function of actin proteins during cell division of animal cells is to
A. complete cytokinesis.
B. build spindle fibers.
C. condense or pack the DNA.
D. make melodic sounds.

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

Suggest why placing wheels under a heavy box reduces the neccessary force required to push it along at a constant speed.

Which law represents a balanced chemical equation?