Which organelle fragments during mitosis?
(a) endoplasmic reticulum
(b) Golgi apparatus
(c) mitochondrion
(d) chloroplast
Control of Cell Numbers and Cell Size
(b)
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Light is the only environmental factor that changes during the course of succession in a community
Indicate whether the statement is true or false
How is a reemerging pathogen different from an emerging pathogen?
A) A reemerging pathogen is an infectious bacterial infection that manifests once every few months but goes away without treatment and only blisters the skin in another few months. B) A reemerging pathogen is an infectious agent that went away when the patient was taking antibiotics but quickly returned when the patient stopped taking the antibiotics. C) A reemerging pathogen is an infectious helminth that was detected in one location of the body but receded and emerged from a second location. D) A reemerging pathogen is an infectious agent that was under control due to prevention or treatment strategies and is now resurfacing. E) A reemerging pathogen is an infectious agent that was identified previously in one location but is now emerging in a new separate location.
True or False: A researcher hopes to estimate the size of an E. coli population in a liter of seawater. To do this, he can count the number of E. coli bacteria in a milliliter of seawater and multiply this number by 1000
A. true B. false
What is one technique that is used to identify a specific RNA sequence of a sample from a library?
A. Western blotting B. Northern blotting C. Southern blotting D. Eastern blotting