What is the basic functional unit of a nervous system?
A. A motor unit
B. An axon
C. A glial cell
D. A neuron
D
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Repeating DNA regions of at least 1000 base pairs known as ____________________ can affect gene expression
Fill in the blank(s) with correct word
Epiphytes are ____
a. plants that are not parasites but that do grow on other plants instead of the soil b. plants that trap animals and digest them c. parasitic plants that use mycorrhizae to obtain nutrients and food indirectly from other plants d. plants that deal with nutrient-deficient soil by growing a large, netlike mesh of roots through several layers of the soil e. parasitic plants that use haustoria to obtain nutrients and food directly from other plants
This is the process a cell goes through to become a particular cell type, based on the proteins that it expresses and is more-or-less a permanent condition.
A. differentiation B. somatic cell transfer C. discrimination D. determination
Which organisms are common soil decomposers that grow in colonies of branched chains of cells that superficially resemble a fungus?
A) actinomycetes B) cyanobacteria C) proteobacteria D) cocci