1. Which of the following statements best describes a prediction?
а
The number of deformed frogs in five
ponds that are polluted with chemical X
is higher than the number of deformed
frogs in five ponds without chemical X.
If the water in a pond has lower levels of
b pesticide then there will be less
deformed frogs.
С
The number of deformed frogs is not
affected by the presence of chemical X in
the pond.

Where can you find prokaryotic and eukaryotic cells?

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above