Answer:
The cell membrane is a semi-permeable membrane that surrounds the cytoplasm . the main fuction is to protect the interior of the cell by allowing certain substances get into the cell while keeping other substances out.
Explanation:
Answer:
option c
Explanation:
plant and sunlight as their raw material and then process and convert into glucose in this process oxygen is evolved and carbon dioxide is involved
Answer:
<em>The correct option is A) they are all classified as pure substances.</em>
Explanation:
Pure air is a term which is used to described air which is free from pollutants or other contaminants. All the substance from which air is made are considered as pure substances. Hence, option A is correct.
Other options, like option C, is false because the components of the air are no chemically bonded to one another. They exist freely. Options D is false because not all the components of air can be classified as an element. For example, carbon dioxide is not an element.
Answer:
Air Resistance/Friction
Each swing encounters that resistance and it slows down the swing, although it might not be enough to be noticeable during one swing. Friction also slows down the swing. If the pendulum is swinging based upon inertia from the initial release eventually it will come to a stop
Explanation:
This means that they each have there own part in the cell, think baseball team. there are different players but you work together
