The stars with the coolest surface temperature fall into which spectral class?

A. A

B. B

C. G

D. K

E. M

F. O

Which group of organisms survived mass extinctions that marked the ends of both the Paleozoic era and Mesozoic era?

Explain why we would expect to find glucose in the urine of a diabetic person

How do you figure net force for opposite forces?

Difference between obtrusive and unobtrusive observation

Coral reefs protect beaches and shorelines from damage caused by__? A. pollution B. waves C. humans D. other organisms

Suppose scientists have 2 substances that look alike. how could they use density to see if they are the same substance?

Lysogenic bacteriophages contribute to bacterial virulence because bacteriophages kill human cells. carry plasmids. kill the bacteria, causing release of endotoxins. produce toxins. give new gene sequences to the host bacteria.

The organ of blank contains the sensory cells of the cochlea.

8. What does Sl stand for?

When do the finches on the Galápagos Islands learn their songs? From whom do they learn their song?