Microbes. — cells that have a nucleus, like an amoeba or a paramecium
Answer:
We call it
Double circulation bcoz their are 3 circulation exist between heart, lungs and body organs.
EXPLANATION :
Flow of blood is left to right
1. Pulmonary circulation
<em>Right</em><em> </em><em>ventricle</em><em> </em><em>-</em><em>pulmonary</em><em> </em><em>artry</em><em> </em><em>-</em><em> </em><em>lungs</em><em> </em><em>-</em><em> </em><em>pulmonary</em><em> </em><em>veins</em><em> </em><em>-</em><em> </em><em>left</em><em> </em><em>artria</em><em> </em>
2. Systemic circulation
Left ventricle - systemic artry - body organs - systemic veins- right artria
In mitosis 1 , the first stage is known as prophase..
chromatin material starts condensing into thread-like chromosomes
in this stage spindle fibres form from the opposite poles
the nuclear envelope disappears
nucleolus disappears
Answer:
It provides a fluid buffer which acts as a shock absorber that absorbs any kind of mechanical injury.
Explaination:
The cerebrospinal fluid is a clear watery protein- free substance that surrounds and protects the brain and spinal cord and also serves as nutrient delivery and waste removal system for the brain.
<em><u>Protection:</u></em>
It basically provides lubrication between bones and spinal cord & between the skull and brain. When the victim suffers from a head injury, the fluid acts as a buffer that absorbs or dulls the force.
