Q: Q: But a point mutation can also change a codon for an amino acid into a what? Choices: - axon - exon - stop mutation - stop codon A:
A: stop codon

Q: Q: Made of hot, solid rock, the mantle is beneath what layer of the earth? Choices: - liquid - volcanic - core - crust A:
A: crust

Q: Q: How are bacteria identified and classified? Choices: - by there movement - by their color - by there cell count - by their shape A:
A: by their shape

Q: Q: What is a type of cell that supports neurons and maintains their environment? Choices: - axon cell - neurofilament cell - interneuron cell - glial cell A:
A: glial cell