Our Body 1.
Match the following:
COLUMNA
(a) Heart
(b) Small intestine
(c) Brain
(d) Kidneys
(e) Nose
(f) Bones
COLUMN B
(i) Digestive system
(ii) Respiratory system
(iii) Circulatory system
(iv) Skeletal system
(v) Excretory system
(vi) Nervous system
2
Tick the correctonton.

(a) Heart  -  (iii) Circulatory system

The heart is the major body part that helps in pumping oxygenated blood to the various body part and take back deoxygenated blood to the heart again.

b) Small intestine  - (i) Digestive system

It is part of the digestive system and helps in digestion. The small intestine is the part of the GI tract.

(c) Brain    - (vi) Nervous system

Brain controls and gets stimulus with help of neurons and act according to the information in the nervous system of individuals.

(d) Kidneys  -  (v) Excretory system

Kidneys are the major part of the excretory system as they filter the blood and remove the waste from the blood.

(e) Nose    (ii) Respiratory system

The respiratory system includes the nose as the inhalation and exhalation both are accompanied by the nose and it filters the air and sends air to  and from the lungs

(f) Bones  (iv) Skeletal system

The skeletal system is made up of the bones that provide support to the body of an individual organism and helps in the movement.

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the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.