EASY
7th CBSE
IMPORTANT
Earn 100

The muscular tube through which stored urine is passed out of the body is called -
(a)kidney
(b)ureter
(c)urethra
(d)urinary bladder

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Important Questions on Transportation in Animals and Plants
EASY
7th CBSE
IMPORTANT
They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?

EASY
7th CBSE
IMPORTANT
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in

EASY
7th CBSE
IMPORTANT
In which of the following parts of the human body are sweat glands absent?

EASY
7th CBSE
IMPORTANT
In a tall tree, which force is responsible for pulling water and minerals from the soil?

EASY
7th CBSE
IMPORTANT
Aquatic animals like fish excrete their wastes in gaseous form as

MEDIUM
7th CBSE
IMPORTANT
Veins have valves which allow blood to flow only in one direction. Arteries do not have valves. Yet the blood flows in one direction only. Can you explain why?

EASY
7th CBSE
IMPORTANT
What is the special feature present in a human heart which does not allow mixing of blood when oxygen-rich and carbon dioxide-rich blood reach the heart?

EASY
7th CBSE
IMPORTANT
Name the organ which is located in the chest cavity with its lower tip slightly tilted towards the left.
