HORTICULTURE

HORTICULTURE SCIENCE

INSECT PESTS OF FRUITS PLANTATION MEDICINAL AROMATIC CROPS VEGETABLE ORNAMENTAL AND SPICE CROPS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is a characteristic of an insect?
A
Two pairs of antennae
B
Two body segments
C
Four pairs of legs
D
Two pairs of wings
Explanation: 

Detailed explanation-1: -Insect wings are living, flexible structures composed of tubular veins and thin wing membrane. Wing veins can contain hemolymph (insect blood), tracheae, and nerves.

Detailed explanation-2: -Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel.

Detailed explanation-3: -Like houseflies, horseflies, crane flies, and hoverflies also have one pair of wings.

There is 1 question to complete.