Traditions, beliefs, and values are considered what aspect of human life?
A. cultural
B. communicative
C. biological
D. instructional
E. chemical
Answer: A
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About 80% of all living gymnosperm species belong to the phylum ____
a. Anthophyta b. Cycadophyta c. Ginkgophyta d. Gnetophyta e. Coniferophyta
Observational studies are based on making observations on subjects without manipulating them. As such, it is hard for observational studies to ________.
A. generate any results B. test participants C. find proper funding because they are expensive D. draw conclusions about the cause of an observation
Clonal libraries used to determine the sequence of a microbial genome using the whole-genome shotgun approach are typically generated by ________.
A. cloning small gene-sized DNA fragments produced by breaking chromosomal DNA with ultrasonic waves B. cloning random PCR fragments amplified from genomic DNA C. cloning large DNA fragments produced by breaking chromosomal DNA with ultrasonic waves D. cloning large DNA fragments produced by restriction endonuclease cleavage
On a large volcanic island, researchers are studying a population of annual herbaceous plants. Which of the following observations best supports the prediction that speciation will occur within the existing plant population?
(A) Individuals of the species sometimes reproduce asexually by producing runners. (B) Lava has separated the population into two areas: an upland forest and a lowland marsh. (C) Multiple groups of birds depend on the fruit produced by the plants as a source of food. (D) The plants produce more seeds during warm summers than they do during cool summers.