Answer:
adding a catalyst
Explanation:
catalysts accelerate the speed of chemical reactions
Answer:
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers.
Summarize how the overharvesting of a single species, such as a baleen whale, can affect an entire ecosystem. Overharvesting the baleen whale would affect the entire ecosystem by changing the relationships among the organisms in the food web.
Significance of the birds in the old man
Answer:
Weather conditions
Explanation:
Food can be limited based on location, however, scientists can control what kind of food it is. Soil can be tested and experimented on. There can be a lot of it and different kinds. Space is fought over because of territories and is limited compared to how many people and animals there are. Weather is not something that can be controlled in an experiment since it is sporadic.
