Answer:
B! That's the order of the planets!
Tl = thallium
look at the periodic table look for element number 81 on the periodic table and that's TI
It's mass number is 204.38
Answer:If it's important to display the exact values, then the straight lines do a much better job. But often you'll find that what matters is the trend and the precise measurements are secondary. ... A straight line suggests that the value between the two measurements increased linearly, while a curved line suggests otherwise.
Explanation- you better read all of that!
Answer:
C
Explanation:
Directional selection is one that favors one extreme ends of a trait of a population. In this case the length of the neck in the giraffe population is the trait and the longest necks have an advantage –they gather more food hence have more chances of reaching reproductive age and passing their genes to next generation- and are, therefore, favored best by natural selection pressures that power evolution.