Answer:
a nervous system, connecting to their brain which sends signals to move all the parts around the body, for example, if you want to move your leg forward, your nervous system sends signals to it, same for other animals.
What does this mean for us? Water's polarity allows it to dissolve other polar substances<span> very easily. When a polar substance is put in water, the positive ends of its molecules are attracted to the negative ends of the water molecules, and vice versa.
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The carbon 14 left from this animal is 3 grams of 24 grams which is: 3g/24g= 1/8 times of its original mass. Then, the age of the animal fossil would be:
final weight= initial weight * (1/2) ^ time/half-live
1/8 initial weight = initial weight * (1/2) ^ time/half-live
log2 1/8= log2 (1/2) ^ time/half-live
-3= -time/half-live
time= -3 * -(half-live)
time= 3 half-live
If the half-live is 5730 years, the age would be: 3* 5730= 17.190 years.
Answer:
As we can see from the graph above, brightly colored guppies would only survive in environments without predators, as they have worse camoflague thanks to their bright tail fins. In an environment with predators, guppies with plain/not brightly colored tail fins would survive better, seeing how while even placed in the predator's sight the guppies were less likely to be attacked when not brightly colored.
