A wolf eats a rabbit that eats grass. The grass is a ________.
A. producer
B. consumer
C. heterotroph
D. detritivore
Answer: A
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Cloning of human cells for the purpose of treating a patient is referred to as
A) embryo splitting. B) pluripotency. C) somatic cell nuclear transfer. D) medicinal cloning. E) therapeutic cloning.
The body of a fungus has several characteristics. One of these is their hyphae, long chains of cells. Which of the following statements best describes the nature of septa and cross walls?
A. Septa form cross walls between the long chains of cells that make up hyphae. B. Septa of the cross walls are formed on the outside of fungal cells and give the fungal body more rigidity. C. Spores of fungi that are formed within reproductive structures have cross walls separated by septa. D. The cross wall within the nuclear membrane of every fungal body forms septa. E. Cross walls are responsible for the formation of spindle plaques within the hyphae after the septa are produced.
If a human zygote has either 45 or 47 chromosomes it was caused by random fertilization.
a. true b. false
In estimating the linear probability model for whether an individual clicked through on an advertisement based off whether the individual is on a mobile device or not, which of the following conditions may not hold from the resulting regression (ClickThroughi = ?0 + ?1Mobilei + Ui)?
A. The sum of the residuals for the mobile observations will be zero. B. The sum of the residuals will be zero. C. The sum of the residuals for the non-mobile observations will be zero. D. The sum of the predictions will be zero.