Which of the following of bryophytes are the simplest one?

All plants do not possess___________?

A. Lenticels
B. Cuticle
C. Stomata
D. All of these

Villi and microvilli increase__________?

A. digestion
B. assimilation
C. absorption
D. ingestion

All of the following veins carry deoxygenated blood exceptA. Superior vena cava
B. Inferior vena cava
C. Hepatic vein
D. Pulmonary vein

pulmonary vein carry oxygenated blood because it carry blood from lungs to left atrium.. inferior vena cava and superior vena cava carry deoxygenated.. and all veins carry deoxygenated blood except pulmonary vein.. superior vena cava carry the deoxygenated blood from uper part like head neck shoulder etc. while inferior vena cava carry the deoxygenated blood from lower part limbs etc of the body.

 

Of the following which one is not found in series proterostomia?

A. Annelida
B. Arthropoda
C. Mollusea
D. Echinodermata

Human brain contains__________neurons.

A. 10,000,00
B. 100,000,000
C. 100,000,000,000
D. 1000

The 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.

In which of the following location enzymes controlling cellular respiration are present____________?

A. Nucleus
B. Chlorophast
C. Milochondria
D. Ribosome