The cytoskeletal structure(s) that are composed of actin and regulate cell shape, cell movement and muscle contraction include
_____ microfilaments.
_____ intermediate filaments.
_____ microtubules.
_____ microtubules and intermediate filaments.
_____ microfilaments and microtubules.
__X__ microfilaments.
_____ intermediate filaments.
_____ microtubules.
_____ microtubules and intermediate filaments.
_____ microfilaments and microtubules.
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The organismal concept of communities argues that species distributions along environmental gradients form clusters because they are interdependent
Indicate whether the statement is true or false
Protist cells that produce gametes for sexual reproduction are most specifically called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statement is incorrect about warts?
A. They include deep plantar warts on the soles of the feet. B. Topical salicylic acid can be used for removal. C. They are frequently cancerous. D. They are caused by human papillomaviruses (HPV). E. They are transmitted by direct contact or fomites.
Which of the following temperature cycles would you expect to see in a standard polymerase chain reaction (from denaturation to annealing to extension)?
A) 95° ? 72° ? 55° B) 45° ? 72° ? 95° C) 95° ? 55° ? 72° D) 95° ? 72° ? 95° E) 75° ? 95° ? 45°