Which of these is a type of chemical bond that involves the sharing of electrons?
A. buffer
B. covalent
C. ionic
D. the strong nuclear force
B. covalent
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Metabolism produces more than ____ waste products
a. 1000 b. 800 c. 200 d. 600 e. 10,000
In cystic fibrosis, two unaffected carriers can have a child with the disease. It is as common in boys as in girls. This disease is Select one:
a. X-linked dominant. b. X-linked recessive. c. autosomal recessive. d. pleiotropic. e. autosomal dominant.
Use the life history table above to answer the following question. An individual of this species produces an average of __________ offspring in their 2nd year, has __________ probability of surviving to age 3 and has a lifetime reproductive success of _________.
A. 1; 25%; 1 B. 1; 25%; 3 C. 0.5; 2%; 3 D. 0.5; 2%; 1
Neisseria meningitidis, which causes meningococcal meningitis, is capable of triggering sporadic disease outbreaks by which of the following methods?
A) hides from the immune system inside neurons B) mutations due to utilization of reverse transcriptase C) infecting compromised hosts D) capsular switching E) efficient spreading in the host by breaking down blood clots