The deep ocean floor doesn't have enough light to support any producers

Indicate whether the statement is true or false


TRUE

Biology & Microbiology

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Why are tropical waters so blue?

a. Higher density of water b. Large bacteria populations c. High mineral content d. Low primary productivity

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New plant cells are produced through mitosis of cells from

A. tracheid tissues. B. cortex in the stems and roots. C. vascular bundles. D. meristems. E. stomata.

Biology & Microbiology

The time that it takes for half of a radioactive isotope to change into another stable element is its

A. chemical life cycle. B. half-life. C. activation time. D. life span.

Biology & Microbiology

Biological evolution differs from chemical evolution in that it would have been possible only after the development of

A. a metabolic pathway. B. enzymes. C. true cells. D. nucleic acids.

Biology & Microbiology