Question

Which of the following is part of the positive feedback loop between species range shifts and climate change in which each is accelerating the other?

Select one:
a. As the oceans warm, species move deeper into the ocean.
b. As the amount of CO2 in the atmosphere increases, plants shift their ranges to increase their level of photosynthesis.
c. As the earth warms, the amount of permafrost melts. This permafrost melt reduces the number of species that can be found in a particular area.
d. As low-albedo shrubs and trees move towards the poles, they replace high-albedo plants like lichens, leading to less reflectance of sunlight.

Answer 1

b. As the amount of CO2 in the atmosphere increases, plants shift their ranges to increase their level of photosynthesis.

Step-by-step explanation:

Positive feedback enhances the signal or makes it to increase continuously. When you praise someone that person will continue to work harder. Negative feedback changes the direction, in biological process it's usually an opposite. If you're hot you sweat to lower your body temperature.

If CO2 increases the plant increases photosynthesis to make more glucose. (hypothetical situation)