1. two points
2.respiratory and organs
3.heart and heart
4.homogenous process/system
Answer:
a)Difference in physical state observed:
The difference between the two carrots is that the carrot in the plain water appears bigger or slightly swollen while the carrot in the salt water appears smaller and has shrank in length and slightly in width.
b)Process involved that has caused the changes:
The process that has taken place is osmosis.
c)Why has the process occured:
The process occurs due to the semi-permeable membrane of the cells of carrots that allow water either in or out of the cells.
In the plain water, the process that takes place is endosmosis where the cells of the carrot draw in water and hence the carrot increases in mass. The carrot in the salt water, on the other hand, experiences exosmosis, where water is drawn from the carrot's cells and the carrot becomes dehydrated and shrinks in length and width.
d) Beaker 1 : Water
Beaker 2 : Sugar Solution
e) example of endosmosis is absorption of capillary water from the soil by the root.
another example of endosmosis is is entrance of water in the xylem vessel from the soil by the root.
Answer: During the day the sun heats up both the ocean surface and the land.
Explanation:
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
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Answer:
Herbicides, pesticides, and anhydrous ammonia
Explanation:
These are harmful for inhalation because they can damage our lungs and make us very sick
Hope this helps!!!