Prokaryotic organisms have recently been divided into two domains, bacteria and archaea. this division is based on characteristics such as a. differences in cell wall composition. b. differences in their initiator amino acid for start of protein synthesis. c. presence or absence of histones. d. b and c only e. a, b, and c

How can you approximate the number of calories required to keep you in energy balance?

One of the reasons that stars are so large is because

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.