Answer:
Plants are a source of food, fuel and medicine.
Explanation:
In biology, plants are photosynthetic living beings without locomotive capacity whose cell walls are mainly composed of cellulose.
The importance of plants for humans is indisputable. Without them we could not live, since the plants participated in the composition of the gases present in the Earth's atmosphere and in the ecosystems, and are the primary source of food for heterotrophic organisms. In addition, plants have direct importance to man: as a source of food; as building materials, firewood, fuel and paper; as ornamental; as substances that worsen or improve health and therefore have medical importance; and as a consequence of the latter, as the raw material of the pharmaceutical industry.
Answer:
Nitrogen is converted from atmospheric nitrogen into forms, such as NO2-, in a process called fixation. The majority of nitrogen is fixed by bacteria, a lot of which are symbiotic with plants.
Answer: Fixation
R, S, and T always have the same percentage composition, while X, Y, and Z always have the same percentage composition. Chargaff's rule is then a viable theory that can be used in this situation.
- The DNA of any species of any organism must have a 1:1 stoichiometric ratio of the purine and pyrimidine nucleotides, according to Chargaff's principles.
- More specifically, the ratio of guanine and adenine to cytosine and thymine must be the same. This pattern is present in both the strands of the DNA.
- The formula comes as A + G = T + C = 1
- In this universe there are six base pairs R,S,T,X,Y and Z. composition of R,S and T is always same thus these can be considered the purines.
- The percentage composition of X,Y and Z is always the same thus these can be considered the pyrimidines.
- applying Chargaff's rule to these bases:
R + S + T = X + Y + Z
= 1:1
Thus, the nucleic acid will contain six base pairs where bonds are formed between RX, SY and TZ.
learn more about Chargaff's rule here:brainly.com/question/12148299
#SPJ1
Answer:
B. The rain shadow effect causes equal
precipitation on both sides of a mountain.
Explanation:
A rain shadow is a patch of land that has been forced to become a desert because mountain ... On the other side of the mountain—the rain shadow side—all that precipitation is blocked. ... This cool air cannot hold moisture as well as warm air. Cool air forms clouds, which drop rain and snow, as it rises up a mountain.
