If the figure above shows the dances of bees in a hive at twelve noon on March 21 in the northern hemisphere, which dance is communicating that the food is to the south of the hive?
A) dance A
B) dance B
C) dance C
D) It is not possible to tell if any of the dances indicate the food is to the south of the hive.
Answer: D
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The region of DNA sequences before the start of a gene is often called the promoter. One type of promoter is called the TATA box. Many species' promoters are TATA boxes or a variation of the TATA box
Many species' promoters are TATA boxes or a variation of the TATA box. DNA sequences that are similar in different organisms are called ____ sequences. Fill in the blank with the appropriate word.
Which of the following suggested a method of DNA replication to Watson and Crick?
A. The backbone of the DNA helix is antiparallel. B. Due to complementary basepairing, each strand could act as a template for the other. C. The DNA helix has a major and a minor groove. D. The two strands are held together by strong, covalent bonds. E. The DNA helix is stabilized by hydrophobic stacking.
Which two countries make up about 40 percent of the world’s population?
a. India and Russia b. Russia and the United States c. China and the United States d. China and India e. China and Russia
Geographic biodiversity "hot spots"
A. have the highest vascular plant species richness and ?3 unique ecosystems. B. have ?1500 endemic plant species and have lost ?70% of the original habitat. C. have the greatest number of species that have lost >50% of their original range. D. contain ?1500 vascular plant species and have lost >50% of their original range.