Which of the three things provide evidence that south america, africa, antarctica, and australia were once together as one supercontinent? select the three correct answers. glacial deposits and scratches in the bedrock from an ice sheet match in distant regions. icy glaciers covered south america, africa, antarctica, and australia as one supercontinent over the north pole. mountain chains match up where south america collided with australia to form pangaea. fossils of marsupials were originally the same across south america and australia. vast deposits of coal formed in regions with ancient deserts. cratons match across the edges of continents.

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:

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). this change in skin color provides evidence that -

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from