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bagirrra123 [75]
3 years ago
9

The earliest vascular plants or seedless reproducing with ? Instead of seeds?

Biology
1 answer:
elena-14-01-66 [18.8K]3 years ago
4 0
The earliest vascular plants were seedless, reproducing with instead of seeds (spores)



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If the half-life of a radioactive atom is 3,500 years. How old is the substance if the parent-daughter ratio is 1:127?
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Step 2: Calculate the rate constant

Radioactive decay follows first-order kinetics. We can calculate the rate constant (k) using the following equation.

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