The correct statements are I, III and IV.
An angiosperm refers to a plant, which exhibits flowers and generates seeds enveloped within a carpel. The angiosperms include a large group of herbaceous plants, grasses, shrubs, and the majority of trees. While gymnosperms refer to the plants that exhibit seeds but not safeguarded by any kind of fruit or ovary. It includes the cycads, gingko, and conifers.
Both the angiosperm (sunflower) and gymnosperm (gingko) are seed-bearing plants. However, the seeds of a sunflower are safeguarded by a flower or fruit, while for the gingko, there is no mechanism like that, i.e, there is not any kind of protection. Additionally, sunflower exhibit phenomenon of double fertilization, which is not witnessed in the case of gingko.
Answer:
The reactivity of acetic acid with various chemicals.
Motivation based on internal factors such as organismic needs (competence, relatedness, autonomy), as well as curiosity, challenge, and fun is known as Intrinsic motivation.
Intrinsic motivation is doing of an activity for inherent satisfaction rather than for some separable consequence.When individual is intrinsically motivated is moved to act for fun or challenge entailed rather than because of external products , pressure or rewards.
It is important because for task persistence , seeing a project through , and for ensuring exploration of as solution. It is accompanied by positive affect that love of the task is an important component of creative work. It strengthens efforts and persistence. Three element of motivation is autonomy , mastery and purpose.
To learn more about Intrinsic motivation here
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These nucleotides have three parts: 1) a five carbon ribose sugar, 2) a phosphate molecule and 3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil.
