What organism do coral animals harbor inside their bodies to provide them with nutrition?
A) bacteria
B) dinoflagellates
C) photosynthetic algae
D) hydras
C
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A molecular analysis of plasma or nuclear membranes would reveal the presence of _____
a. cellulose and chitin b. suberin and cutin c. phospholipids and proteins d. microtubules and microfilaments e. phospholipids and nucleic acids
Chance changes in a gene pool are known as ____
a. artificial selection b. genetic drift c. phenotype variations d. inheritance e. acquired characteristics
Would you expect desert plants to have a thin or thick cuticle?
A) thin because desert plants do not have stomata B) thin because desert plants have a short root system C) thick because desert plants have an extensive shoot system D) thick because desert plants need to retain water in this dry environment
____ is water pressure inside the vacuole of a plant cell.
A. Active transport B. Diffusion C. Turgor pressure D. Exocytosis E. None of the above