The ecological footprint of cities can be reduced by _____________.
A. using more fertilizers on lawns and public parks
B. planting rooftop gardens
C. tax incentives to encourage investment in renewable energies
D. composting food waste and growing food in community gardens
E. B, C, and D are all correct.
Ans: E. B, C, and D are all correct.
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Crossing over occurs during _____ of meiosis
1.prophase I 2.metaphase I 3.anaphase I 4.prophase II 5.metaphase II
In translation, unlike DNA replication, the base-pairing rule is not required Indicate whether the statement is true or false
The pathogen that causes Legionnaires'pneumonia also causes a milder infection called Pontiac fever.
a. true b. false
An important tool of genetic engineering is ________ DNA, which is DNA altered by the incorporation of genes from a different organism
Fill in the blank(s) with correct word