Answer: A closed circulatory system and an excretory system consisting of tubular nephridia
Explanation:
Cell specialization allows cells to perform essential cell specific tasks. Such as nerve cells, red blood cells etc.
There are twice the number of Hydrogen atoms than Oxygen atoms in a disaccharide.
<h3>Disaccharides</h3>
- Disaccharides are carbohydrate compounds containing two monosaccharide units linked together by glycosidic bonds
Examples of disaccharides include sucrose and maltose.
- The ratio of hydrogen to oxygen atoms in a carbohydrate is always a 2:1.
For example, the formula of sucrose is C₁₂H₂₂O₁₁
> The ratio of hydrogen to oxygen atoms is 2;1
Therefore, there are twice the number of Hydrogen atoms than Oxygen atoms in a disaccharide.
Learn more about disaccharides at: brainly.com/question/731310
Answer:
Putting items in the recycling bin that can’t be recycled can contaminate the recycling stream. After these unrecyclable items arrive at recycling centers, they can cause costly damage to the equipment. Additionally, after arriving at recycling centers, they must be sorted out and then sent to landfills, which raises costs for the facility.
Explanation: d
Answer:
1A - Respiratory = trachea, lungs... however both arteries and veins move oxygen around the body, and are therefore valid answers
1B - Skeletal = bones
1C - Muscular = muscles
1D - Digestive = stomach, large/small intestine
1E - Circulatory = heart, veins and arteries
2. Cellular respiration is the conversion of sugar into energy the cell uses to function via various chemical reactions. Digestion is an example of this. Stomach acid breaks down food into sugars that cells break down further into energy to keep you alive
3. Bones contain bone marrow deep inside of them which is responsible for the creation of red blood cells. Your lungs can move air all they want but would be useless without red blood cells to take the oxygen to cells and take the CO2 away from them.
