The answer would be triple point! Easy to remember because triple as in 3 :)
Endoskeleton
Pros: bones do not get broken so easily
If bones broken, can heal more quick since they are inside with good blood and nutrient supply
Cons: flesh can easily get damage
no shedding of endoskeletons, so no new skeleton cannot if injuried.
Change those up for exoskeletons.. pros for cons and cons for pros
Base your answers to the following questions on the graph below, which shows the effect that average yearly precipitation and temperature have on the type of weathering that will occur in a particular region.
City
Avg. Yearly Temp (oC)
Avg. Yearly Precip (cm)
Albany, NY
9oC
98 cm
Washington, D.C.
15oC
111 cm
Phoenix, AZ
20oC
22 cm
You can see the periodic table one by one.
Pb(NO3)2 = PbN2O6
So there are
1Pb
2N
6O
and so you find the molecular mass from the periodic table and add all the numbers
Molacular mass of
Pb = 207
N = 14
O = 16
multiply it with the number of atoms
1Pb = 207 × 1 = 207
2N = 14 × 2 = 28
6O = 16 × 6 = 96
Molecular mass total = 207 + 28 + 96 = <u>3</u><u>3</u><u>1</u>
So the molecular mass is 331.
