Is there an image to show?
Question 5:
A scientific theory should not be regarded as reliable (false).
Scientific theories are reliable.
Question 6:
It is best to use a line graph to show change over time.
Answer;
The amount of water and the temperature of the water and the angle the bottle was set in.
Explanation;
The two main variables in an experiment are the independent and dependent variable;
-An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
The dependent variable is 'dependent' on the independent variable. As the experimenter changes the independent variable, the effect on the dependent variable is observed and recorded.
For example; the dependent variable in tornado in a bottle is the amount of water and the temperature of the water and the angle the bottle was set in.
Answer:
Explanation:
The switch from glutamic acid to valine in position 6 of hemoglobin (HB) forms the basis of sickle cell anemia disease pathology.
Valine is hydrophobic and it's chain is shorter than glutamic acid. The lack of the carboxylic acid and shortness of valine will result in loss of the ionic interactions formed between the glutamic acid's carboxylic group and other amino acids. A hydrophobic cavity will form in the beta sheet of HB due to the short and hydrophobic structure of valine. For these reasons, the HB molecule will be less stable and insoluble in water. The insolubility is thought to be caused by fibril formation between the valine interacting with hydrophobic pocket residues of the adjacent HB molecule. This would in turn affect binding of oxygen to HB.
Answer:
B
Explanation:
Hence When we eat food it closes but when we talk While eating the epiglottis would remain open and the food may enter windpipe which may trigger violent coughing to clear the food material out of trachea or may get serious by Chocking and may be fatal. That is why it is not advised to talk while eating
