Since there are no choices, it will be difficult to answer your question.
Let's say these are the choices:
A. The liquid is a pure substance because it is colorless.
B. The liquid is a mixture because its temperature rises.
C. The liquid is a pure substance because it remains liquid when cold.
D. The liquid is a mixture because it has a gas dissolved in a liquid.
your answer is D. The liquid is a mixture because it has a gas dissolved in a liquid.
Answer:
The correct answer is - option B. They are small because they lack a nucleus.
Explanation:
Red blood cells or erythrocytes are specialized cell that produce in bone marrow and have specific role such as carrying oxygen from lungs to deliver it to the various organs and carry out carbon dioxide.
In mammals these cells lack cell organelles such as nucleus and mitochondria, a major factor that determined its smaller size. The size of RBC are move through narrow vessels throughout a organism because of its specific size and shape that provide it space for hemoglobin and allow to be flexible and bend to move through narrow vessels.
Thus, the correct answer is : option B. They are small because they lack a nucleus.
Answer:
Polio affects the body by attacking your central nervous system,
It infects the spinal cord, brain, and surrounding tissues.
some symptoms can be depending on which area of the spinal cord and brain it attacks.
it happens because of poor hygiene.
hope this helps :)
(( what article were you given because i cant answer the question directly if you dont give any context ))
the molecules start slowing down til the molecules are able to move over each almost like a solids molecules
