Early RNA molecules were able to self replicate, which helps to explain why all organisms share the same genetic code.
Answer and explanation:
The garden pea had many advantages to be used as a model in inheritance studies. These plants grow very fast, so you can rise several generations in little time. This fundamental if you want to do this kind of studies. The study object needs to have a brief generational time, so they can be selected and their descendants can be raised again. Another advantage was that garden peas can be raised easily. They don't need any special care. Besides, they were common in the market. Mendel could find them and bought them any time that he wants. Also, they presented visible characteristics that could vary from one plant to another. Some pea gardens had violet flowers, while others had white flowers. Some were tall, while others were small. These made possible to select plants with specifics features and to study if they could transmit these features to the next generations.
It could be really difficult to do the same experiment in humans. several years would have to pass to observe new generations, so during the lapse time of the researcher, only a few human’s generations could be studied.
Answer:
D.) Helpful variations allow individuals to survive and reproduce better than members who lack these variations.
Explanation:
Variation is one of among the principles of natural selection.
Variations occur naturally thereby favouring some individual groups over the other.
In the above example, the helpful variations naturally select the parents of the offsprings while the other members of the group are disadvantaged.
Answer: Can restore balance to ecosystems.
<span>Ecological Benefits of Sponge:
<span>Provide food source
Provide shelter/habitat
Provide structural strength to reefsMIneralization of nitrogen and carbon and nutrient recycling
</span>
Commercial Benefits of Sponge:
<span>A great source of skin care product that is hypoallergenic and great for sensitive skin
Great cleanser foams
<span>Sea sponge agriculture gives livelihood to people</span></span></span>
