A toxin that is secreted and acts upon a specific cellular target is called a(n)______
Fill in the blank(s) with the appropriate word(s).
exotoxin
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Which organ stores feces immediately prior to elimination?
a. small intestine b. liver c. appendix d. gall bladder e. rectum
What are the two types of tissues associated with bone?
What will be an ideal response?
The passageways in the nuclear envelope for movement of substances between the nucleus and cytoplasm are called nuclear ________.
A. pores B. inclusions C. endoplasmic reticulum D. chromatin E. histones
Some bacteria produce the enzyme Beta-lactamase, which results in resistance to certain antibiotics
such as penicillin. Since these same organisms reproduce asexually, they produce offspring that ____.
a. can be killed by penicillin b. have an abnormally high rate of mutation c. are resistant to penicillin d. have variable numbers of chromosomes e. can make penicillin