How do viruses make copies of themselves?
A) By taking the nutrients of the host cell they infected
B) By using the cellular machinery of the host cell they infected
C) By digesting the host cell they infected
D) By targeting their host cell they infected for cell death
B
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Oxytocin is secreted by the posterior pituitary in females only
Indicate whether the statement is true or false.
Apoptosis is responsible for all of the following EXCEPT
a. the ability of newly born kittens to open their eyelids. b. the generation of body axes. c. destruction of the tadpole's tail. d. destruction of some larval tissue in a developing butterfly. e. removal of webbing between human fingers.
The cristae of a mitochondrion are critical ________.
Fill in the blank(s) with the appropriate word(s).
Which two structures play direct roles in permitting bacteria to adhere to each other, or to other surfaces?
1. capsules 2. endospores 3. fimbriae 4. plasmids 5. flagella a) 3 and 4 b) 3 and 5 c) 1 and 2 d) 1 and 3 e) 2 and 3