Animals absorb oxygen and release carbon dioxide in respiration and plants absorb carbon dioxide and release oxygen through photosynthesis.
I believe the answer is E) Input
Set point is the genetically influenced can individual weight range for an individual; it is maintained by biological mechanisms that regulate food intake, fat reserves, and metabolism. This is the weight range in which the body is programmed to function optimally. According to the set point theory one's body will fight to maintain that weight range.
1. Answer: to answer questions about the natural world
The aim of scientific method is to answer a question that the scientist have. To answer the question, the scientist need to design a research or observation. If the research is flawed, the result might not match with the scientist aim and the conclusion will be wrong. Scientific method can be used to help design the research so it will have less flaw
2. Answer: fertilizer
The student wants to determine the effect of a certain brand of liquid fertilizer on the growth of ivy. The fertilizer are hoped to influence the growth of the ivy. Independent variable is the variable that hoped to influence the dependent variable. So, the independent variable would be fertilizer and the dependent variable would be the growth.
