Answer:
Magnetite is black or brownish-black with a metallic luster, has a Mohs hardness of 5–6 and leaves a black streak.
Answer:
A there needs to be a producer, consumer, and predator, and decomposer.
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An enzyme lowers the activation energy of a reaction so it can take place within living organism, so an enzyme is a biological catalyst.
Answer:
There is a protein synthesis cycle
Explanation:
The whole cycle goes through Transcription and Translation
where the DNA gets converted into RNA
Darwin's theory of evolution by natural selection can explain how antibiotics are becoming defective because the bacteria that is trying to be fought off might have had a mutation making it more likely to survive. Once that surviving bacteria makes offspring most of the first generation will die from the antibiotic but soon all of their offspring will produce a resistance to that antibiotic.