Which area of the United States has the least risk of earthquakes?

a. eastern

b. central

c. western

d. southern

he universal genetic language of DNA is common to virtually all organisms on Earth, however diverse. What is the best explanation for this fact?

As an object travels around the sun or other large object, it travels on a fixed path that is called its A. period B. orbit C. perigee D. revolution

The case of a plant having nitrogen-fixing bacteria in its roots is an example of: endosymbiosis parasitism mutualism none of these

A bullet enters the left lung and collapses it. which cavity has been entered?

Which compound does most of the work to carry out cell processes?

Which of these substances could be driven across a membrane by the resting membrane potential?

Norway rats have 42 chromosomes in their diploid cells. If a diploid rat cell enters meiosis, how many chromosomes and double-helical molecules of DNA will be present in each daughter cell at the end of meiosis II?

Which discovery is attributed to Phoebus Levene? A. extraction and observation of DNA B. identification of ribose and deoxyribose C. recognition of RNA as DNA's messenger D. construction of an accurate DNA model

A small population of chimpanzees lives in a habitat that undergoes no changes for a long period. how will genetic drift probably affect this population?

Which type of cells can differentiate into many different types of cells? select all that apply