A classification system based on mutual similarity that involves comparing as many characteristics as possible is called a ________ system.
A. phyletic
B. phenetic
C. determinative systematic
D. phylogenetic
Answer: B
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The three primary meristems are the ____________, which forms the epidermis; the procambium, which produces primary vascular tissues (primary xylem and primary phloem); and the ground meristem, which differentiates further into ground tissue.
Choose the letter of the best match: A. protoderm B. vascular cambium C. apical meristem D. procambium E. ground meristem
An element or molecule that has an essential role in an organism's growth and survival is defined as a(n) ________
a. vitamin b. ion c. compound d. nutrient
During translation, where does the energy for translocation come from?
a. from the breaking of bonds between tRNA and mRNA b. from hydrolysis of GTP c. from the breaking of bonds between mRNA and the ribosome d. from the removal of a tRNA from the E site
Which of the following is incorrect about genetic effects on behavior?
A. Fraternal twins are a good model system to study the influence of genes on behavior. B. When two species of lovebirds that differ in the way they carry twigs were mated, their offspring showed an intermediate phenotype. C. Behavior can be influenced by genes that affect the neural circuitry within the brain. D. In mice, the fosB gene seems to determine if a female will nurture her young. E. In humans, the relative importance of genes versus environment is still debated.