____ relieves the tension on the double helix during DNA replication
Fill in the blank with the appropriate word.
Topoisomerase
Biology & Microbiology
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Lignified, tube-like structures that branch throughout the body of some plants, conducting water and solutes, are called
____.
a. vascular tissues b. apical meristems c. root systems d. rhizomes e. shoot systems
Biology & Microbiology
Which country does NOT have large deforestation issues?
a. Brazil b. Indonesia c. Colombia d. Mexico e. Australia
Biology & Microbiology
The ________ is the innermost layer of the eye that is lined with almost a quarter-billion photoreceptors
Fill in the blank(s) with correct word
Biology & Microbiology
Defending the body against bacterial infection and invasion by foreign substances is a function of
a. red blood cells b. plasma c. platelets d. white blood cells
Biology & Microbiology