Fibrous roots help prevent soil erosion by
A. not branching
B. growing deep into the soil
C. extensive branching to which soil particles can cling
D. Clinging to the stones in the soil to form a hard-packed base
Answer: C. extensive branching to which soil particles can cling
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In humans, patterns of inheritance are often studied using which of the following?
A. Dihybrid testcrosses B. Production of true-breeding lines C. Pedigree analysis D. Self-fertilization E. None of the answers are correct
Each of the following plays a role in the recycling of proteins in a cell EXCEPT
A. ubiquitin. B. proteasomes. C. clathrin. D. ATP.
In the Proterozoic eon, accumulated in the atmosphere that supported the first eukaryotes and multicellular organisms.
A. oxygen B. sulfur C. nitrogen D. hydrogen E. carbon dioxide
Which of the following are cellular digestion centers?
What will be an ideal response?