A solution with a pH of 2 has how many more protons in it than a solution with a pH of 4?
A. 100 times more
B. 5 times more.
C. 1000 times more.
D. 10 times more.
Answer: A. 100 times more.
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Based on the table of average intron frequency given below, predict the relative order of genome size for these four eukaryotic organisms
Organism Average Intron Frequency Cryptosporidium parvum 0 Plasmodium falciparum 1 Arabidopsis thaliana 5 Homo sapiens 8 A) Homo sapiens > Arabidopsis thaliana > Plasmodium falciparum > Cryptosporidium parvum B) Cryptosporidium parvum > Plasmodium falciparum > Arabidopsis thaliana > Homo sapiens C) Homo sapiens > Cryptosporidium parvum > Plasmodium falciparum > Arabidopsis thaliana D) Intron frequency cannot be used to predict genome size in eukaryotes.
Which factor is the main driving force behind the water cycle?
a. Ocean currents b. Volcanic eruptions c. Temperature d. Sunlight e. Land formations
In soft-bottom communities suspension feeders dominate
a. where sediments are generally muddy. b. as infauna. c. where sediments are generally sandy. d. as meiofauna.
Which of the following represents energy in its most disordered form?
A.) electromagnetic (light) energy B.) chemical bond energy C.) potential energy D.) heat energy E.) kinetic energy of a moving object