Answer:
Nucleic acids as the hereditary material
Explanation:
The nucleic acids are deoxyribonucleic acids DNA and ribonucleic acids RNA. DNA is an hereditary material that carry information and it is found both in eukaryotic cells and prokaryotic cells. It is found in the nucleus of eukaryotic cells but it is not enclosed in prokaryotic cells.
Answer: The correct answer to the question is option E
BOTH ANAEROBIC RESPIRATION AND CREATININE PHOSPHATE BREAKDOWN.
Explanation: 50 meter dash is a race,a form of exercise, energy is required as well as muscle contraction and chemical processes.
Alex muscles will rely on the following chemical processes during the race;anaerobic respiration and creatine phosphate breakdown.
These chemical processes are explained below;
Aerobic respiration uses oxygen to generate energy but unlike aerobic respiration, anaerobic respiration breaks down glucose to provide energy and create adenosine triphosphate(ATP), lactic acid and ethanol.
Muscle contraction cannot take place without the supply of energy by ATP, molecules can store energy in it's phosphate form, this molecule is known as creatine phosphate,when this happens,ATP that is in excess will then transfer it's energy to creatine,this action will produce creatinine phosphate and adenosine diphosphate (ADP) and they will now be stored as reserve of energy that can be used to produce more ATP and thus energy is produced.
The seasons are caused by the tilt of the Earth's rotational axis. The answer is A
Answer:
D
Explanation:
The simple answer is the electrons in the outermost energy level.
Hydrogen has 1 electron in the outermost energy level.
Magnesium has 2 so this tells you that magnesium has a charge of 2
Oxygen has 6 oxygen has a charge of - 2
Fluorine has 7
For most elements, the electrons in the most outer ring determine the valence of the element.
Notice that the non metals work differently than the metals. Mg may have a charge of 2 and that is the number of electrons in the valence right.
Oxygen is a non metal it has a charge of - 2. It gets 6 electrons by subtracting the number of its charge from 8.
