Match the microbe with an example of its importance to humans.
A. Members of this group have caused "mad cow disease" and Creutzfeld-Jacob disease.
B. Members of this microbial group cause serious diseases such as smallpox, AIDS, and Ebola fever.
C. Members of this group include decomposers, associate with plant roots and help plants grow, produce antibiotics, help bread rise, and help make wine.
D. Members of this group are photosynthetic, include unicellular and multicellular forms, and are the foundation of aquatic food chains.
E. This group includes beneficial microorganisms that fix nitrogen and make antibiotics, as well as harmful microorganisms that cause disease such as plague and strep throat.
A. Prions
B. Viruses
C. Fungi
D. Algae
E. Bacteria
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Synapsis is best described as:
A. the exchange of genetic information between sister chromatids. B. the alignment of non-sister chromatids at the metaphase plate. C. the exchange of genetic information between non-sister chromatids. D. the alignment of homologous chromosomes in prophase 1.
Cyanide binds and impairs one of the molecules involved in the production of ATP. Which organelle does cyanide act upon?
A. peroxisome B. lysosome C. ribosome D. endoplasmic reticulum E. mitochondria
In a growing population, the youngest age classes have
A. the highest number of deaths/year. B. the fewest individuals. C. the most individuals. D. the smallest number of deaths/year. E. the most individuals and the largest number of deaths/year.
Which of the following serves as a switching mechanism in the photoperiodic response in plants?
a. phytochrome b. auxin c. cryptochrome d. calmodulin e. phytoalexin