Which statement is true according to hooke's law? i think the answer is a! tell me if i'm right
a. if the force on a spring doubles, the distance it stretches doubles. b. if the force on a spring doubles, the springs length increases by some unknown amount. c. if the force on a spring doubled, the distance it stretches is halved.
d. if the force on a spring doubles, the springs length decreases by the same unknown amount.

Look at the images of different rocks. which rocks have a fine-grained texture? check all that apply. 1 2 3 4 5

Scenario 5 1) take 10 red and 10 black beans and place them, mixed, on the table. record the starting phenotype # and frequencies (% of your total population) of your starting population in the table provided (generation 0). 2) act as a predator. “capture” as many organisms as you can until you have reduced the population to three organisms. put them aside. at this point, the predators die. 3) the remaining organisms each produce 2 clonal offspring. multiply your organisms accordingly and allow them to mix on the table. calculate and record the resultant phenotype # and frequencies (% of your total population) of your population in the table provided (generation 1). 4) repeat the reproduction event, allowing each of your organisms to produce 2 clonal offspring. calculate and record the resultant phenotype # and frequencies (% of your total population) of your population in the table provided (generation 2). 5) repeat the reproduction event, allowing each of your organisms to produce 2 clonal offspring. calculate and record the resultant phenotype # and frequencies (% of your total population) of your population in the table provided (generation 3).

Identify two examples of chemical reactions that you have encountered during the last week. identify an exothermic and endothermic reaction. explain.