How do most insects respire?
(A) skin
(B) from cleome
(C) from the lungs
(D) from the nervous system
The presence of funnel cells is a characteristic feature of ______
(A) Roundworms
(B) SpongeBob
(C) earthworms
(D) tongue worm
Which of these animals have external and internal skeleton?
(A) Cockroach
(B) Earthworm
(C) Frogs
(D) Snake
A disease that can be caused by the deficiency of nicotinic acid for a long time is?
(A) Beri-Beri
(B) Pellagra
(C) Scurvy
(D) anemia
Desert plants have long roots because?
(A) High soil temperature encourages roots to elongate
(B) Roots are long in search of water
(C) There is no water in the land. Therefore, it hardens and puts pressure on the roots, due to which it becomes elongated.
(D) Roots grow in the opposite direction to the heat of the sun
A desert is a terrestrial habitat that is very dry and receives very little rainfall annually. Desert plants have deep long roots to absorb water deep below the surface of the ground.
Tears come when peeling onions, because onions expel?
(A) Sulfonic acid
(B) Sulfenic acid
(C) amino acids
(D) Carbolic acid
Artificial lighting?
(A) can destroy foliage
(B) may cause photosynthesis
(C) can synthesize foliar
(D) cannot be the cause of photosynthesis
Light blue blood in arthropod animals can be due to
(A) Hemocyanin
(B) hemoglobin
(C) hemin
(D) Porphyrins
Which of the following plants is not a collection organ of a stem?
(A) Sugarcane
(B) Ginger
(C) Potato
(D) Sweet potato
Microbe can be seen by?
(A) with an empty eye
(B) Compound microscope
(C) by hand lens
(D) electron microscope
Get the Examsbook Prep App Today