Oxygen - It is very important for all living to survive 'cause without it, cellular respiration can't take place....
Glucose - It is the simple food, it provides energy to the whole ecosystem, so that they can survive.
Without either of them, life is not possible!!!!!
We will use the Descartes` rule of signs and see how many times the signs change from positive to negative and from negative to positive from one term to the next ( two consecutive terms are with different signs ).
In this case it is 4 times ( +7x13 to -12x9, -12x9 to +16x5, +6x5 to -23 x and finally -23x to +42 ).
Answer: There are 4 real zeroes.
The answer is C because it is an example of evolution or adaption.
The answer is C because you have to know the outshell of the layers and the temperture
Number 6 is add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
7. You should use a line graph when your need to track changes over short and long periods of time
8. The dependent variable goes on the y axis
