Answer:
IV: Student grade level (6th, 7th, 8th)
DV: "Loudness" (Operationalizing this variable would be beneficial, or in other words, define a way to measure it)
Explanation:
Your circulatory system consists of your heart, blood vessels and blood, and is responsible for transporting life-giving oxygen throughout your body. When you exercise, your body's need for oxygen increases; the harder you work out, the more oxygen your body demands.
Answer:mom had alot of cat because thats what she decided to do to hereslf
If biodiversity is lost in an ecosystem, it will lead to decrease in ecosystem resilience. Biodiversity loss is a major concern now. With the extinction of many species, ecosystem might collapse. Removing a single species can result in a partial collapse of the ecosystem. For example: honey bee colony collapse situation. Without honey bees, humans would struggle or fail to grow certain important crops. With more loss of biodiversity it may become hard for our very survival also.
