Answer the following statements true (T) or false (F)
1. The root hairs develop in the zone of elongation.
2. The direction in which a plant cell expands depends on the arrangement of cellulose microfibrils in its cell wall.
3. Flowers develop as a result of determinate shoot growth.
4. The expression "one bad apple spoils the whole bunch" probably has to do with the action of ethylene on fruit ripening.
1. FALSE
2. TRUE
3. TRUE
4. TRUE
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"Fracking" is helping people and environments in the world's periphery by reducing reliance on wood for fuel
Indicate whether this statement is true or false.
The disease SARS is spread by ______
A. skin to skin contact D. sneeze droplets B. sexual intercourse E. more than one of these C. blood infections
Ginkgo trees are known to lose their leaves at a certain time each year throughout the United States. Based on this information, Ginkgo trees in China must behave the same way. These statements are an example of:
A. inductive reasoning B. a theory C. an experiment D. deductive reasoning
What is nondisjunction?
A) failure of chromosomes to duplicate before mitosis or meiosis B) failure of cells to divide by cytokinesis in meiosis C) failure of homologous chromosomes or sister chromatids to separate in meiosis D) an extra duplication of the chromosomes before mitosis or meiosis E) failure of sperm and egg to fuse in fertilization