A population estimate is a calculation of the size of a population for a year between census periods or for the current year.
Answer:
I believe the answer is A) energy pyramid
Explanation:
It's talking about trophic levels, as opposed to individual organisms.
Answer:
sensors, control center, communication system, target
Explanation:
Answer:
A 550
Explanation:
0.55 hectometers is equivalent to 550 decimeters.
a)121 million gigatons or 121 million billion metric tons" of carbon).
B)The ocean, with around 38,000 gigatons
c)60 gigatons of carbon