What physical and behavioral adaptations do zebras have that them evade predators? a. live in families and travel in large numbers for protection; bunch together to confuse the predator with their stripes or run away at speeds up to 40 m. p.h; .sharp teeth and strong hoofs to defend themselves b. live solitary lives unless feeding when they bunch together for protection; short legs and necks so predators have harder time holding on when attacked; stripes so they blend in with their surroundings c. live in families and travel in large numbers for protection; sharp teeth for defense; develop stripes as they mature to better blend in with the herd because they are provided less protection from their parents d. feed primarily at night for safety from predators; scatter to feed so predators have a harder time finding them; long necks to see over tall grasses and spot predators before they get too close

In tossing one coin 10 times, what are your chances for tossing a head? a tail? 2. in tossing one coin 100 times, what are your chances for tossing a head? a tail? 3. in tossing one coin 200 times, what are your chances for tossing a head? a tail? deviation = ((absolute value of the difference between expected heads and observed heads) + (absolute value of the difference between expected tails and observed tails)) divided by total number of tosses. this value should always be positive. 4. what is the deviation for 10 tosses? 5. what is the deviation for the 100 tosses? 6. what is the deviation for 200 tosses? 7. how does increasing the total number of coin tosses from 10 to 100 affect the deviation? 8. how does increasing the total number of tosses from 100 to 200 affect the deviation? 9. what two important probability principles were established in this exercise? 10. the percent of occurrence is the obtained results divided by the total tosses and multiplied by 100%. toss the coins 100 times and record your results. calculate the percent occurrence for each combination. percent head-head occurrence: percent tail-tail occurrence: percent head-tail occurrence:

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins

Animals that have thick fur and ae able to store large amounts of body fat live where ?