Double fertilization occurs in
A. gymnosperms.
B. mosses.
C. lichens.
D. angiosperms.
D. angiosperms.
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Which of the following cytoskeletal filaments are capable of growing and shrinking in the cell?
A. microtubules B. intermediate filaments C. microfilaments D. Answers a and c are correct.
What motor proteins are responsible for the activity of the contractile ring during cytokinesis in animal cells?
A. kinesin B. myosin C. dynein D. dynamin
If the DNA of a new discovered organism exhibits genes that are arranged as operons and lacks intron sequences, the hypothesis that this organism is bacterial rather than mammalian would be supported by the evidence.
Answer the following statement true (T) or false (F)
Answer the following questions true (T) or false (F)
1. Microbial contamination always results in infection. 2. Influenza is an example of a chronic disease. 3. Biofilms provide an alternative means for bacteria to attach to surfaces within the body.