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Pavel [41]
3 years ago
15

Sedimentary rocks with ripple marks suggest that the rocks formed

Biology
2 answers:
natta225 [31]3 years ago
6 0

Answer: A

Explanation: Ripple marks are sedimentary structures and indicate agitation by water (current or waves) or wind.

Dovator [93]3 years ago
6 0
I think it’s A I’m not completely sure
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The typical state of a neuron is the _____ potential, but when electrical signals stimulate it to its threshold, the _____ is im
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The typical state of a neuron is the<u> resting potential</u>, but when electrical signals stimulate it to its threshold, the <u>action potential</u> is immediately observed.

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In a reaction process called condensation, amino acids are chemically joined together via the amine group of one and the carboxylic group of another. This process releases water molecule (H20) to form a bond called PEPTIDE bond between the amino acids. Several amino acids in their 100’s or 1000’s that are chemically joined this way forms a POLYPEPTIDE chain, which in turn forms the protein molecule.

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What type of variation is necessary for natural selection to occur? (3 points)
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Genetic

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