The plant louse Phylloxera was responsible for destroying ____ in Europe
a. orange groves
b. orchards
c. potato fields
d. vineyards
e. corn crops
ANSWER: d
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Which of the following categories of genes is typically NOT encoded in cpDNA?
A. Genes encoding rRNA B. Genes encoding tRNA C. Genes for photosynthetic pathway enzymes D. Genes encoding nuclear proteins
Many species of birds form large flocks. What dispersion pattern describes this behavior?
A. random B. uniform C. rapid D. social E. clumped
Specimen collection
A. does not require special handling. B. must be done under sterile conditions. C. is always done by a medical professional. D. must utilize aseptic techniques.
A reproductive difference between sea urchins and humans is _____
A) the sea urchin egg completes meiosis prior to fertilization, but meiosis in humans is completed after fertilization B) sea urchin eggs and sperm are of equal size, but human eggs are much bigger than human sperm C) sea urchins, but not humans, have a need to block polyspermy, because only in sea urchins can there be more than one source of sperm to fertilize the eggs D) sea urchin zygotes get their mitochondria from the sperm, but human zygotes get their mitochondria from the egg