No, not every scientific method begin with an observation. on basis of what we want, steps for scientific method changes.
And in scientific method before observation, first we predict (what will happen in the experiment). after prediction we observe. Prediction is known as hypothesis. And observation is what we are viewing.
Answer:
1) option A - 5' TAG CTG GTA 3'
2) Option C - regulates which materials enter and leave the cell
3) option B - heredity information
Explanation:
For question 1) The complimentary strand will read in opposite direction 5' to 3', and will have each base replaced by its specific base pair:
Adenine (A) replaced by Thymine (T)
Guanine (G) replaced by Cytosine (C)
Thus, the complimentary strand of 3' ATC GAC CAT 5' read as 5' TAG CTG GTA 3'
For question 2)
Cell membrane is a flexible membrane made up of proteins and lipids, and is role is to
- select the materials absorbed by the cell
- protects the cell
For question 3)
DNA stores hereditary information along its sequence in form of genes, that are passed down to offsprings, and determine their traits/behavior
Answer:
bruh I'm so confused! I have been staring at this question for years and my brain cells are gonna I'm so sorry! I wish I could help!
I believe the indepent variable would be the drug they are administered.
All other variables stay the same except for this one.
