W3.CSS
The first product prepared by the process of photosynthesis is:
The process during which energy is produced in the body from food is:
Are the small pores present on die surface of leaves.
Kidneys contain many small microscopic tubes called.
The removal of carbon dioxide,urine and sweat is a process of:
The juices secreted by the walls of stomach are called:
The juice secreted by the walls of stomach acts on:
Saliva helps the digestion of:
Water and mineral salts are absorbed by:
Large intestine
none of these
The temperature of plant is regulated by a process called:
Transportation
Respiration
In the blood circulatory system ------------ the works as pump.
The messages, we receive from the Environment is sent as signals to the spinal cord by sensory:
A neuron is a long ---------- cell.
The process during which energy is produced in the body from food is:
The amount of blood in the circulatory system of a 25 years old person of an average size is:
Less than 2 liters
Between 2 and 4 liters
Between 4 and 6 litters
Between 6 and 10 liters
Which one of the following causes blood to exit from the heart ?
An auricle relaxes
An auricle contracts
A ventricle relaxes
An auricle contracts
Which one of the following contain mostly deoxygenated blood ?
Arteries
Pulmonary artery
Which one of the following is not true for arteries ?
They have thick walls
They have many valves
Carry blood away from heart
Pulse rate is measured from them
Which one of the following part of a plant absorbs water, minerals and salts ?
Which one of the following carries messages through the body ?
Select one of the following organs which is protected by ribs:
Blood from the body first enters the ---------- of heart.
Right auricle
Left auricle
Right ventricle
Left ventricle
The Aorta is------------ which supplies oxygenated blood to all parts of the body.
A reflex action is a --------- reaction in response to a stimulus.
Three chambers
Four chambers
