Carbon Monoxide would have been mostly to effect the embryo as it targets the respiration system.
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Answer:
A
Explanation:
If Im wrong pls correct me, I hope it will help
To prevent blood flowing back after each heartbeat. They ensure that the blood flows only in one direction (back to the heart).
<h2>Development of Plant Needles</h2>
Explanation:
- Seed of pitch pine treated with colchicine delivered tetraploid seedlings which had thick and sporadic needles and less fortunate tallness and diameter growth than ordinary seedlings.
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In test of colchicine-initiated polyploidy in pines, researcher found that a significant number of the polyploid plants returned to a diploid development in light of the fact that the polyploid cells partitioned at a more slow rate and were overwhelmed by the more quickly developing diploid cells which encompassed them.
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The primary needles of both diploid and polyploid plants were more effective at low light intensity than secondary needles, and they had lower compensation points.
