By gathering rare fossils together in a single location, a specimen collection scientists attain a more complete understanding of life's history. which of the following best explains why this might be true? ( apex )
a. a hypothesis does not need to be tested in an experiment
b. no evidence is needed to support a theory about life in the distant past.
c. fossils of different ages and types can be compared side by side
d. a large number of rare objects can be kept hidden from the public

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?

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give

Cells must be in osmotic equilibrium with their surroundings environments because if they swell or shrink thier membranes will rupture