Companion cells are closely associated with

(a)

sieve elements

(b)

vessel elements

(c)

Trichomes

(d)

guard cells

Aerenchyma is found in

(a)

epiphytes

(b)

hydrophytes

(c)

halophytes

(d)

xerophytes

Unstriated muscles are found in

(a)

blood vessels

(b)

gastrointestinal tract

(c)

urinary bladder

(d)

all of these

Long, unbranched multinucleated cells are

(a)

striated muscle cells

(b)

smooth muscles

(c)

cardiac muscles

(d)

none of the above

Brush bordered epithelium is found in

(a)

stomach

(b)

small intestine

(c)

fallopian tube

(d)

trachea