Match each sentence with the statement that explains why it is included in the passage. A to develop the idea
that different
materials have been
used to make shoes
B to develop the idea
that scientist believe
humans have used
shoes for a long time
C to refine the idea
that materials used
for shoes have
evolved over time

1 In studying bones of the smaller toes of fossilized
skeletons, scientists observed that the thickness of
these bones decreased somewhere between 40,000
and 26,000 years ago.
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2 Most soles are made from synthetic materials such
as ethylene, vinyl, acetate, rubber, and polyurethane,
which provide better traction, durability, and water
resistance than leather soles.
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3 The Masai of Africa used rawhide; the people of India
used wood; and the Chinese and Japanese used
rice straw.

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

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).

What is the primary function of the nervous system?