Explanation:
botox decreases the release of acetylcholine from motor neurons.
Jan Ingenhousz discovered the process of photosynthesis
Answer:
Rat. The laboratory rat, Rattus norvegicus, belongs to the order Rodentia and family Muridae. Rats were first used for experimental purposes in the mid 1800s. Strains were developed to study neuroanatomy, nutrition, endocrinology, genetics and behavior.
Explanation:
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humans cannot impact one of Earth's systems without impacting the others because Earth's systems are interconnected. They interact with each other, moving matter from one system to the other. Changes to the atmosphere brought about by human activity eventually lead to changes in the biosphere and hydrosphere.
That the universe was created at one time with a huge bang.