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.
Yes. The bubbling of hydrogen peroxide is due to the formation of oxygen from it by this following reaction:
H2O2 ==> H2O + O2
There's a release of dioxygen, that's why the reaction is foamy.
In fact, this chemical reaction is very slow. It takes several weeks for the hydrogen peroxide to be transformed into oxygen at room temperature. But like most chemical reactions, it can be accelerated, by heating, or by catalyzing it.
So, the liquid hydrogen peroxide that is sold in the stores is an unstable solution, especially when it's open. That's why these bottles should not be kept very long,
Legumes are products that produce? A. BACTERIA B.CARBON DIOXIDE C. NITROGEN COMPOUNDS D. PHOSPHORUS
Answer:
thigmotropism
Explanation:
Tigmotropism is the curved growth of the plant, which occurs through mechanical stimulation. In the case of the question, the stone stimulated the plant's angular growth.
When the vegetable comes into contact with any consistent object, it grows around it. A very common example of tigmotropism is that of tendrils, which grow wrapped around its support. The winding occurs by a reaction that results from a stimulus from the underside of the tendril, this reaction slows the growth of this side, while the upper side grows faster.
