Answer:
Active Transport
Explanation: it is the movement of dissolved molecules into or out of a cell through the cell membrane.
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Answer:
Watson and Crick proposed the double helical model of DNA.
Explanation:
- This model says that DNA exist as double helix. It has two polynucelotide strands running in opposite direction i.e the strands are anti-parallel.
- Each polynucleotide strand is made up of several nucleotide liknked together by phophodiester bonds.
- The two strands are not coiled upon each other but the double strand is coiled upon itself around a common axis like the spiral stair case. Here base pairs forms the stairs and backbone of two strands form railing. Back bone contains sugar and phosphate.
- The base pairing is specific, adenine always pairs with thymine and guanine always pairs with cytosine. Thus if we see any base pair, it consists of one purine and one pyrimidine.
- The two strands of DNA thus show complementary base pairing.
- The strands are held together because of hydrogen bonding between the bases in opposite strand.
- One full helical turn involves ten base pairs and the base pairs are stacked 3.4 A apart.
- This form is called as B-form of DNA.
Answer: H2O
Explanation: Inorganic Compounds usually lack Carbon. The “C” in the other answers stand for Carbon.
Answer:
C.
Event A represents volcanic eruption and Event B represents creation of mountain ranges.
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For a nurse it is quite normal because she knows the pattern of breathing of a small baby but for a primipara ( a lady who is giving birth for the first time ) it might not be acceptable to understand the fact that a newly born baby has an irregular breathing pattern switching in between fast and slow .
As she is a new mother she might not be aware of the fact that a baby breathes very fastly to compensate the amount of energy required to maintain the homeostasis of the baby.As the baby is in growing stage the amount of energy required is much more as compared to that of adults.
Hence , the nurse will not take any medical action as the baby is not sick but yes she will definitely tell the mother that it is normal in baby
