Answer:
A anemometer an instrument for measuring the speed of the wind, or of any current of gas.
GPS is to see where you on on the earth so this is a no.
rain gauge only shows the amount of rain so this is a no
Doppler radar determine's the location and velocity of a storm, clouds, precipitation. So therefore, this is your answer.
Explanation:
The answer that goes in the blank is Division.
Unicellular organisms excrete waste by a contractile vacuole. A vacuole is membrane-enveloped organelle in a cell that is found in lots of microorganism. It expands, filling with water then contracts, removing all of its contents to the exterior of the cell.
In meiosis, one diploid cell divides to make four haploid cells.
Answer:
Biologists measure the number of trophic levels in an ecosystem so as to check its stability and health.
Explanation:
Trophic levels are the feeding position in a food chain such as primary producers, consumers, etc. They are positions that an organisms occupies in a food chain (series of steps in which organisms transfer energy by eating or being eaten);- what it eats and what eats it.
Theoretically there is no any limit to the number of trophic levels in a food chain or number of organisms that live on each level.
