A chemist claimed that in Experiment 2, the pH of the sample solution was greater at a val

hich of the following?

A.Cooled the solution to its freezing point

B.Heated the solution to its boiling point

C.Detected the concentration of nitrazine yellow in the solution

D.Passed an electrical current through a portion of the solution

a beak depth of 9.9 mm more likely have had a greater chance of survival during 1977 ?

A.A finch with a beak depth of 9.4 mm, because, on average, the size of available seeds is larger during dry years.

B.A finch with a beak depth of 9.4 mm, because, on average, the size of available seeds is smaller during dry years.

C.A finch with a beak depth of 9.9 mm, because, on average, the size of available seeds is larger during dry years.

D.A finch with a beak depth of 9.9 mm, because, on average, the size of available seeds is smaller during dry years.

to:

A.determine how beak depth was affected by rainfall on Island A.

B.determine the average age of each finch population.

C.ensure that the beak depth of each finch was measured multiple times during Study 1.

D.ensure that the beak depth of each finch was measured only once during Study 1.

acted will most likely be:

A.less than 0.25 mL.

B.between 0.25 mL and 0.32 mL.

C.between 0.32 mL and 0.39 mL.

D.0.40 mL, because the stopcock will be closed much sooner than 200 sec.

ers who performed the studies ensured that which of the factors listed below would be nearly identical for all the fields? I. Rainfall II. Amount of sunlight III. Amino sugar N content

A.I only

B.I and II only

C.II and III only

D.I, II, and III

test for which tree species?

A.Red maple

B.White ash

C.White pine

D.Yellow birch

in May 2007, the greatest number had which of the 3 genotypes?

A.EE

B.Ee

C.ee

D.Cannot be determined from the given information

study, was the genotype of this fish more likely EE or ee ?

A.EE, because, on average , EE offspring were shorter than ee offspring.

B.EE, because, on average, EE offspring were longer than ee offspring.

C.ee, because, on average, ee offspring were shorter than EE offspring.

D.ee, because, on average, ee offspring were longer than EE offspring.

In both experiments, soil particles in each sample were separated by size in order to:

A.compare sand, silt, and clay to one another according to water content.

B.determine the composition of the soil samples according to particle size.

C.separate forest soil samples with grassy fields samples.

D.compare sand, silt, and clay to one another according to weight.

in generation 3 will pass the disease on to her child?

A.0%

B.25%

C.50%

D.It cannot be determined from the information given.