Answer:
This is an controlled experiment because he is only changing the amount of carbon dioxide in the air. Since he is only changing one variable at a time and comparing it to a natural, unaltered tomatoe area, his experiment is controlled.
Explanation:
The definition of a controlled experiment is a test where the person conducting the test only changes one variable at a time in order to isolate the results. An experiment where all subjects involved in the experiment are treated exactly the same except for one deviation is an example of a control experiment.
<em>Community</em>, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
<u><em>So (B) is your answer</em></u>
The answer is b because gazelles face many predators and they have the ability to blend with the dry grass to not get caught and eaten by predators such as other wild animals like lions.
The negative impact of youth risk behavior considers the risks to youth health and the protective behaviors of health including smoking, drinking<span>, </span>drug use<span>, diet and physical activity. Depending upon one's social circumstance including the location of upbringing and access to education, the risk to health would increase, this could be affected by economic factors, with negative health impact increasing with the less access to resources. This directly impacts on the physical and mental well-being of an individual, with bad diet and lack of physical activity limiting a person's potential in the socioeconomic sphere and confidence and health.</span>
The correct answer is that "<span>RNA polymerase binds to the promoter, which precedes the gene only on the template strand of DNA."
A gene is best described as </span>a chain<span> of DNA or RNA which codes for a molecule that has a </span>characteristic<span>. </span>for the duration of<span> gene expression, the DNA is first duplicated into RNA. The RNA </span>can be immediately practical<span> or be the intermediate template for a protein that </span>plays<span> a </span>characteristic<span>. The transmission of genes to an organism's offspring is </span>the idea<span> of the inheritance of phenotypic </span>traits<span>.</span>
