A scientist observes changes in a population of slow-moving animals over time. She hypothesizes that the population may be decre
asing. To test her hypothesis, she will analyze the population using the / blank / method. She finds that the population of this species is significantly decreasing. If this trend does not change, this species could become / blank /
The correct answer is blank1: quadrant sampling, and blank2: endangered.
Explanation:
A scientist needs to test her hypothesis she needs to perform an experiment or test and for a slow-moving animal (like snail or earthworm) quadratic sampling is a perfect method. The quadrate method uses a closed plot of land to find the vegetation of plant or population percentage of animals present in that land.
A decreasing population of animal could be endangered if the trend will not change.
Thus, The correct answer is blank1: quadrant sampling, and blank2: endangered.
The Paleozoic Era ended with the largest extinction event in the history of Earth, the Permian–Triassic extinction event. The effects of this catastrophe were so devastating that it took life on land 30 million years into the Mesozoic Era to recover
