Which best compares and contrasts red blood cells and white blood cells?
both are produced in the red bone marrow. red blood cells transport oxygen, and white blood cells protect the body against disease.
both are produced in the red bone marrow. red blood cells carry all blood components, and white blood cells the body heal cuts.
both are made of hemoglobin. red blood cells transport oxygen, and white blood cells protect the body against disease.
both are made of hemoglobin. red blood cells carry all blood components, and white blood cells the body heal cuts.

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

What type of competition exsist between two species. turtles and fish

How does the human body lever work?