I only know 2 and 3 are correct. I’m not sure about the last one.
Answer:
D. cell is the smallest part of an organism.
as cell is basic functional and structure of life.
Answer:
any of two or more forms of a chemical element, having the same number of protons in the nucleus, or the same atomic number, but having different numbers of neutrons in the nucleus, or different atomic weights. There are 275 isotopes of the 81 stable elements, in addition to over 800 radioactive isotopes, and every element has known isotopic forms. Isotopes of a single element possess almost identical properties.
Explanation:
Answer:
Explanation:
This is a stroke and the site of injury is the left side of the brain, this occur when the flow of oxygen-rich blood to a portion of the brain is blocked. Without oxygen, brain cells start to die after a few minutes.
A stroke occurs if their sudden bleeding in the left side of the brain, the right of the body will be affected, producing some of the following: numbness and weakness of the right arm and leg Speech problems (inability to form words). Amongst other symptoms.
The left side of the brain is responsible for controlling the right side of the body.
Stroke may occurs at any age and strock risk increase with age
