Answer:
Since it has no charge it would have 20 electrons .
An element is the simplest form of matter that has a unique set of properties. Examples of well-known elements include oxygen, iron, and gold (see the figure below). Elements cannot be broken down into a simpler substance.
Explanation: Happy to help
Answer:
B. centrioles
Explanation:
Plant cells have cell walls, cell membranes and also contain mitochondria along the chloroplasts.
All energy ends up as thermal energy, which is replenished every day by the concentrated energy from the sun.
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Answer: The respiration is a process, which occurs in all living organisms. In respiration a food or substrate present in the body is broken down into components in the present or absence of oxygen.
Explanation:
The respiratory membrane surface area is marked by the surface acquired by the small bronchi that branches into small bronchioles. Further the bronchioles extent to the alveoli for respiratory gas exchange.
In case of a human adult there are 300 million bronchi which cover an area of 180m². So, the total amount of respiratory surface area in healthy adult is 180m².