Answer;
Seedless plant.
The fossil of a plant reveals that it produced spores that were used for reproduction. It was a seedless plant.
Explanation;
-Seedless vascular plants are plants such as fern and horsetails, liverworts, mosses; which contain vascular tissues, but do not produce flowers or seed.
-These plants reproduce using haploid , unicellular spores instead of seeds.
-These plants have life cycles with two distinct stages; one in which spores are produced and one in which sex cells are produced.
If cyclin was always available in the cell at high concentrations
<span><span>cell cycle does not stop at G2 checkpoint, it skips over checkpoints. </span>A cell might be affected by the development of a degradation-resistant cyclin mutant with the following: it is continually stimulated to go through G2 checkpoint and divide with any damaged DNA.</span>
An <span>example of internalization of behaviors as a result of stress is irritability. irritability is largely affected by external factors that could have shifted one's mood. For example, a person is pressured by his boss everytime for the deadline so when he reaches home, he always shout his younger brothers/sisters.</span>
