In an annual tree ring, the wood with large diameter, thin-walled cells is ____
a. called early wood
b. heartwood
c. formed from crushed phloem cells
d. produced in the winter
e. called late wood
ANSWER: a
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All of the following are reproductive structures found in some fungi except
A. ascus. B. basidium. C. sporangiophore. D. mycorrhiza. E. conidia.
Which best describes genotype and phenotype, respectively?
a. The type of genetic makeup and the type of phenomena that the organism experiences b. The location of the alleles and the overall condition of the organism c. The structure of the alleles and the outward appearance of the organism d. The heritable characteristics of the alleles and the offspring of the alleles
Which of the following is incorrect about blood cells?
A. They include glial cells. B. They include leukocytes that are either granulocytes or agranulocytes. C. They develop from undifferentiated stem cells. D. After birth, they are produced in red bone marrow sites. E. They include erythrocytes that, when mature, lose their nuclei.
The "father of epidemiology" is:
a. hippocrates b. edward jenner c. john snow d. john grault