The full extent of the diversity and abundance of life on earth has only been understood in the past few years as a result of
A. advances in deep oceanography and deep earth mining engineering.
B. microscopy techniques to identify the vast quantity of viruses present in all environments.
C. techniques to identify organisms that do not rely on culturing.
D. environmental movements to preserve parks, coral reefs, and glaciers.
Answer: C
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Many disorders are associated with defects in organelle function. Suggest a cellular consequence for a defect in lysosomal enzymes
What will be an ideal response?
The main reason that cellular aerobic respiration needs to occur step by step instead of a single, big reaction is
A. cells don't have enough mitochondria to catalyze the larger, single reaction. B. too much energy would be released as heat and destroy the cell. C. cells don't store enough oxygen to absorb all the energy in one release. D. cells produce the enzymes needed for cellular respiration very slowly. E. glucose breaks down slowly, carbon by carbon, inside a cell.
The genetic information in viruses
A. is found in the nucleus of the virus. B. is always DNA. C. is either DNA or RNA. D. is always RNA. E. can be replicated outside of a cell.
In order for hormones like auxin to be used as a chemical signal within a plant it must travel through the xylem to reach the site of activity.
Answer the following statement true (T) or false (F)