Which of the following highlight the benefits of soil to plants?
A. soil supplies materials
B. soil harbors nitrogen fixing bacteria
C. soil has water holding capacity
D. soil allows for air to be supplies to roots
E. all are plant responses during heat and water stress
E. all are plant responses during heat and water stress
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Which of the following statements about the bacterial ribosome is nottrue?
A. The 70S ribosome is a complex of 50S and 30S subunits. B. The entire protein component of the 30S subunit is a single polypeptide chain. C. Each ribosomal subunit contains at least one RNA molecule. D. An rRNA molecule, rather than protein, catalyzes peptidebond formation.
What do you know about electronegativity?
What will be an ideal response?
Four of the five answers listed below are
examples of mutualism. Select the EXCEPTION.
a. plants and pollinators b. plants and seed dispersal by fruit-eating animals c. mycorrhizae d. phorid flies and red fire ants e. anemone fish and anemones
The binding of nonsister chromatids by a synaptonemal complex draws the homologs into close contact so that what process can occur?
A) cytokinesis B) karyokinesis C) independent assortment D) synapsis E) disjunction