So white blood cell’s(WBCs for short) main job is to fight infections.
They do this by swallowing the infection.
You see,WBCs do not have a permanent shape.this means that they enlarge and decrease size of parts of their body.So they grow two long arm like structures called pseudopodia which swallow the infection.(pseudopodia means false feet).
You can see the process in the photo I attached from google
1 kilometer = 6.68 ×
(<<<AU is in scientific notation here)
To convert 300 billion kilometer (3,000,000,000 km) into AU you must multiply the kilometer by the equivalent of 1 km in AU (6.68 ×
)
3,000,000,000 × (6.68 ×
) = 20.04 AU
Hope this helped!
Carbon is the basic element for living thing
Answer:
c. minerals form rocks
Explanation:
rocks are formed from combinations of a few common minerals, hope that helps