Where heavy metals pesticdes move up the food chain and start to kill lower leveled species/ animals.
Anti-bodies. This is not a hard question to answer, as you can just copy/paste the question into a search engine to get an adequate answer.
A parasite is a type of a symbiont.
Parasitism describes a relationship between two organisms where one benefits, and the other is harmed. The parasite is the organism that benefits from the relationship, while the host is harmed by the relationship. Parasites can be a number of things including plants, animals and even viruses and bacteria.
Your body used the respiratory system (lungs)
Answer:
Mass number
Explanation:
Isotopes have the same number of protons and electrons but different no. Of neutrons. As mass number = protons +neutrons.
Mass number should differ.
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