The first ever vascular plants are_________?
The first ever vascular plants are_________?
A. Cooksonia
B. Selaginella
C. Adiantum
D. Dryopteris
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Human brain contains__________neurons.
Human brain contains__________neurons.A. 10,000,00
B. 100,000,000
C. 100,000,000,000
D. 1000The average human brain has about 100 billion neurons (or nerve cells) and many more neuroglia (or glial cells) which serve to support and protect the neurons. Although there are an estimated 100 billion neurons in the human brain, there are another ten to fifty times that number of glial cells in the brain.
Malphighian tubules absorb waste materials and salts from__________?
Malphighian tubules absorb waste materials and salts from__________?
A. Blood
B. Lymph
C. Gut
D. HemolymphInterconversion of carbohydrates proteins and lipids in living cells are an example of____________?
Interconversion of carbohydrates proteins and lipids in living cells are an example of____________?
A. Coordinated catabolic activities
B. Coordinated anabolic activities
C. Both A and B
D. Any oneSalivary glands present in front of ear are___________?
Salivary glands present in front of ear are___________?
A. Sublingual
B. Submaxillary
C. Submandibular
D. ParotidArterial blood contains _________ of CO2 per 100 ml of blood
Arterial blood contains _________ of CO2 per 100 ml of blood
A. 54 ml
B. 60 ml
C. 64 ml
D. 50 mlThe place of attachment of leaf with the shoot is called__________?
The place of attachment of leaf with the shoot is called__________?A. Pith.
B. Pit.
C. Petiole
D. Ecdysone