A potential downside of using within estimation is:
A. the estimator will not yield estimates of the fixed effects themselves.
B. the coefficients will be biased.
C. r-squared is less meaningful.
D. the standard errors will be larger.
Answer: A
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Several new materials have been developed for use in the microbiology lab. These materials must be sterilized before use, but cannot withstand a temperature over 60oC and can't be exposed to water. Which method of sterilization would be applicable?
A. Oven-dry heat B. UV radiation C. Steam autoclave D. Ionizing radiation
Which of the following are key elements of detrital food webs?
a. Fungi b. Herbivores c. Carnivores d. Plants
Each of the following sentences is true regarding homologous recombination except
A) The frequency of recombination is uniform across the genome. B) Homologous recombination involves RecA in prokaryotes and RAD51 in eukaryotes. C) Homologous recombination resolves the repaired strands using a Holliday junction. D) Homologous recombination involves a process known as homology searching. E) Homologous recombination involves the formation of a synaptonemal complex.
The ____ of an earthworm allows them to resist desiccation in terrestrial environments
a. shell b. cuticle c. mesoglea d. epidermis e. endodermis