Answer:
a. 0.5 grams b. 0.25
Explanation:
Just use the half-life formula(I linked it below)
a. 4(1/2)^90/30=1/2
b. 4(1/2)^120/30=1/4
Answer:
air masses cooling as they increase in altitude and condense
Answer:
false
Explanation:
it is the goverment's job not consumer of taxpayer
<span>Radiolarians have a cell wall made of
.....
According to </span>
https://microbewiki.kenyon.edu/index.php/Radiolaria <span>
"</span>
Radiolaria are unicellular organisms. They have mineral skeletons (tests) that are composed
of silica. The tests are formed through the absorption of silicon
compounds. This skeleton is covered with cytoplasm, which is withdrawn
if the organism is disturbed."
There cell wall is made of according to another website
...
<span> "Radiolaria....have cell walls made up of thick cellulose walls"
Hope this helps:)
@SamSamySamantha
</span>
Placenta
It also does not allow the maternal and fetal bloodstreams to mix
