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vesna_86 [32]
3 years ago
10

What is a chemical element?

Biology
1 answer:
DochEvi [55]3 years ago
8 0
A part or aspect of something abstract, especially one that is essential or characteristic
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Mark received one dominant allele for brown hair from his father and another dominant allele from his mother.
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P QRS and T waves in electrocardiogram signifies the P wave in an ECG complex indicates atrial depolarization. The QRS is responsible for ventricular depolarization and the T wave is ventricular repolarization.

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2 years ago
Based on the timeline, about how many years ago could the oldest mammalian organism have lived?
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200 millons years.
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