Answer:
Observation
- You watch to see the passengers in cars that pass...
Classification
- To investigate different types of matter, students are asked to seperate items on the table...
- A titration is used to determine the pH...
Experimentation
- You mix two aqueous solutions together...
- A wooden splint is placed above a test tube...
- To determine the activity series, several metals and solutions containing those metals are used...
Explanation:
I abreviated the text in each box, but you should get the gist of which belongs in which categories. Let me know if you need further explanation on what warrants classification in the observation, classification, and experimentation categories.
Answer:
i dunno thats confusing and i cant see it sadly
Explanation:
Answer: The part of DNA that the teacher was modelling would be the backbone of DNA.
Explanation:
The DNA is made of double helical structure which is twisted. In the structure of DNA two strands are coiled among each other.
The DNA consists of the nitrogenous bases, phosphate groups and deoxy-ribose sugar.
The backbone of DNA is made up of sugar( alternating )and phosphate group.The nitrogenous bases such as adenine, cytosine ,guanine and thymine are joined to the deoxy-ribose sugar.
This backbone part was part that the teacher was making as a model by using two coiled springs.
They're assembled in the endoplasmic reticulum. It's the organelle where lipid components of the cell membrane are assembled, as well as proteins and other materials are exported from the cell.
Another term is "K-selected species"
