Soil mineral particles that are less than 0.002 mm in diameter are called
a. sand.
b. humus.
c. clay.
d. silt.
e. microparticles.
C
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The Calvin-Benson cycle is a cyclical pathway of reactions that use ____
a. carbon to produce sugar b. sugar to produce energy c. sugar to produce starch d. starch to produce energy e. oxygen to produce carbon dioxide
Many lung ailments are "not curable but treatable." Which of the following conditions is most curable?
Select one: a. advanced lung cancer with metastases b. standard tuberculosis c. asthma d. emphysema e. COPD
Organisms that can manufacture their own chemical energy are called ____________.
A. autotrophs B. heterotrophs C. oligotrophs D. chemotrophs
________ is the sequencing and assembly of random, overlapping cloned DNA fragments into long, contiguous sequences
Fill in the blank with correct word.