HERSHEY'S 20mg
SAT FAT SODIUM TOTAL
SUGARS
CALORIES
how much a
MILK CHOCOLATE
PER 130
14,
2 PIECE
.450Z(129) BARS / NET WT 3.6 OZ (1029)
SERVING CASA DE DD
% Daily Value
Nutrition Amount/Serving % Daily Values Amount/Serving
The % Daily
Total Fat 8g 10% Total Carbohydrate 15g
6% Value tells you
Facts
Saturated Fat 5g 25% Dietary Fiber <19
2%
nutrient in a
4 servings
Trans Fat og
Total Sugars 149
serving of food
contributes to a
per container
Cholesterol 5mg 2%
Serving size
Includes 129 Added Sugars 25% daily diet. 2.000
calories a day is
2 pieces (269) Sodium 20mg 1% Protein 29
used for general
nutrition advice
0% Calcium 51mg
4%
per serving
Iron 1mg
6% • Potassium 95mg
2%
calories 130 Yaaring Omcg
A serving of this Hershey's Chocolate Bar has type your answer..
calories from FAT, type your answer.
calories from CARBOHYDRATES, and
type your answer
calories from PROTEIN
Please answer the question

1. the question asks the most appropriate, which seems to rule out "all of the above." your choice appears to be the correct one.

2. the protocol described is good for identifying correlation, but not cause and effect. for cause/effect, you need to devise a protocol that will assign the treatment (or not) to groups that have essentially the same "demographics" with respect to all the other variables. your choice regarding control group seems appropriate. random assignment of treatment (choice d) may be appropriate also. (i think you can argue that b and d are just different descriptions of the same method.)

3. d will randomize the birds, but may not guarantee there are 10 in each group. e will do both, so seems the better choice.

comment on question 2

based on the problem statement, it seems clear that confident, attentive drivers are more likely to use daytime running lights. so, the protocol might need to be devised in such a way that the lights would be turned on or off without the driver's knowledge. (an attentive driver will figure it out.) assigning a confident, attentive driver to a group required to drive without running lights might mess with his/her confidence and attentiveness. you don't want your experiment to do that. (nor do you want the experiment to subject a driver to greater risk of accident as a consequence of driving without running lights.) experiments involving human safety are always problematic.

the ratio of the conjugate base to the acid required to attain the desired ph.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.