What are the two primary factors that can cause deciduous trees to drop their leaves? What will be an ideal response?
In northern climates, broadleaf trees drop their leaves for the winter when cool temperatures prohibit
effective continued growth. In the humid tropics characterized by dry seasons, broadleaf trees drop
their trees during the dry season. In both cases, the plants ‘escape’ harsh seasons by dropping leaves
and entering a type of dormancy.
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What are the two organ systems of a vascular plant body?
a. shoots and roots b. stems and leaves c. stems and roots d. leaves and roots e. leaves and flowers
Four of the five answers listed below are related by a common phase of mitosis. Select the exception
a. chromosomes align at the spindle equator b. sister chromatids become individual chromosomes c. centromeres divide d. the chromosomes move apart e. spindle microtubules shorten, pulling chromosomes toward the poles
Who first confirmed that the replication of DNA was semiconservative?
a. Chargaff and Hershey b. Watson and Crick c. Avery and Griffith d. Meselson and Stahl e. Watson, Crick, and Wilkins
An analyst is attempting to understand whether the frequency of faulty units coming out of production last month is different for Eastern location plants relative to all plants across the entire company. This analyst is engaging in what type of data analysis?
A. Cluster analysis B. Association analysis C. Linear regression D. Outlier detection