A measure of the quantity of matter in an object is known as:
A) mass. B) energy. C) atoms. D) density.
Answer: A
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As part of your research project, you travel to an island to learn more about the habitats and relationships of flies, spiders, and centipedes. You and your assistant plot out five different areas on the island and count the numbers of flies, spiders, and centipedes living in each plot. Your results show the following: Plot Flies Spiders Centipedes1300254242617103147152147397805791393The most plausible explanation for the high number of spiders in plot 4 is:
A. the flies and spiders worked together to eliminate the centipedes. B. there are too many flies overall. C. the spiders preyed on the centipedes and ignored the flies. D. there are no centipedes to prey on the spiders and there are abundant flies upon which to feed.
What is the event that begins prometaphase?
a) the dissolution of the nuclear envelope b) the reappearance of the nucleolus c) the disappearance of the nucleolus d) the completion of the connection of chromosomes to the spindle e) the complete compaction of the chromosomes
Which of the following is represented by the membrane indicated in the figure?
a. outer mitochondrial membrane
b. plasma membrane
c. nuclear membrane
d. inner mitochondrial membrane
Suppose you've regressed profits on price, assuming a quadratic functional form. Your regression equation is: Profitsi = ?0 + ?1Pricei + ?2Pricei2 + Ui. What is the marginal effect of price in this equation?
A. ?1 + ?2 × Pricei B. ?0 + ?1 + ?2 C. ?0 + ?1 + 2?2 D. ?1 + 2?2 × Pricei