A control group of the experiment is the one in which no treatment or intervention is given. So, in your case, the pea plants in which was not subjected any of the fertilizers, will serve as a control group. This is a negative control. A positive control group is the one in which an established treatment is given, which definitely leads to the production of the desired character. So, in your case, a very good well-known fertilizer which has a positive control on the growth of the pea plant, would serve as a positive control.
The answer is; A
Usually, the oceanic plate is heavier than the continental plate. This is because the oceanic plate is ‘wet’ from the percolated oceanic water in its crust. Therefore, it is submerged by the continental plate, As they collide. the crust (especially the continental plate) folds hence casing uplifting and formation of fold mountains such as the Himalayas.
Cancer is not a virus.
<span>Viruses replicate using the host cell RNA. </span>
<span>With some viruses this may lead to an increased risk of certain cancers.</span>
In biopsychology, there is a system in the brain which is called the limbic system. The limbic system is responsible for one's memory, emotions and instincts -drives.
Many researchers suggest that the existence of emotions helped the animal kingdom to respond to sociality and survive better, emotion can also be translated into care and love. These traits also aid why infants, babies and other offsprings of animals are cared for which has a great influence on the survival of the species.
Amygdala, responsible for pain, aggression and grief which is anterior to the hippocampus factors why our memories have incorporated and is strengthened with emotions at that specific circumstance.
Answer:
genetic, species, and ecosystem
Explanation:
.