Which of the following does not have bones and moves by contraction and expansion of the body?
Knee joints are
hinge joints
ball and socket joints
pivotal joints
fixed joints
Study the given figure. The label 'X' in the figure is ......i........ while label 'Y' is .......ii...........The information in which row completes the given statements?
i- organ, ii- muscle
i- muscle, ii- joint
i- joint, ii- bone
i- bone, ii- organ
The diagram below shows a human arm bending at the elbow. Which two body systems most directly cause the arm to bend?
Skeletal and muscular
Reproductive and circulation
Respiratory and excretory
Nervous and digestive
The organ that protects the main nerve cord is
skull
back bone
breast bone
chest bone
The given figure illustrates a rib cage. It protects which part of human body?
Heart and Lungs
Liver and Heart
Kidney and Lungs
Stomach and Intestine
One of the organism given below can walk, climb on a surface and also fly in the air, the organism is
Fishes swim by
forming loops alternately on two sides of the body.
forming loops on single side
somersalting
alternate dipping and coming up
