Ingesting a small number of Clostridium botulinum endospores is generally __________.
A) problematic
B) not problematic
B) not problematic
Feedback: The endospore itself is usually not harmful.
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A recombinant vaccine is used to protect against
A. polio. B. diphtheria. C. hepatitis B. D. pertussis.
For heart muscles to beat in a coordinated rhythm ions must move from one cell to the next through ____.
A. gap junctions B. hemidesmosomes C. focal adhesions D. adherens junctions E. desmosomes
The Monoplacophora
a. Lack a shell b. Live in fresh water c. Lack a foot d. Have several internal organs that are serially repeated e. All of the choices are correct
Finding co-inheritance of a SNP variant and a disease tells scientists that ____________________
(a) everybody who carries this SNP will get the disease. (b) sequences within the SNP cause the disease. (c) a gene important for causing the disease is linked to the SNP. (d) SNPs on other chromosomes will not be co-inherited with the disease.