The cells lining the blood vessels belong to the category of
smooth muscle tissue
squamous epithelium
columnar epithelium
columnar epithelium
B.
squamous epithelium
The squamous epithelium is made up of a single thin layer of flattened cells with irregular boundaries. They are found in the walls of blood vessels and air sacs of lungs and are involved in functions like forming a diffusion boundary
Ground tissue includes
all tissue except epidermis and vascular bundles
epidermis and cortex
all tissues internal to endodermis
all tissues internal to endodermis
Which of the following are correct states as it happens in the common cockroach?
Oxygen is transported by haemoglobin in blood
Nitrogenous excretory products is urea
The food is ground by mandibles and gizzard
The food is ground by mandibles and gizzard
Consider the following four statements (I - IV)related to the common frog Rana tigrina, and select the correct option stating which ones are true (T) and which one are false (F).
I. On dry land it would die due to lack of O2 its mouth is forcibly kept closed for a few days.
II. It has four - chambered heart
III. On day land it turns uricotelic from ureotelic
IV. Its life -history is carried out in pond water.
|
I |
II |
III |
IV |
|
T |
F |
F |
T |
|
I |
II |
III |
IV |
|
T |
T |
F |
F |
|
I |
II |
III |
IV |
|
F |
F |
T |
T |
|
I |
II |
III |
IV |
|
F |
F |
T |
T |
The terga, sterna and pleura of cockroach body are joined by
cementing glue
muscular tissue
arthrodial membrane
arthrodial membrane
Which one of the following structures between two adjacent cells is an effective transport pathway?
Plasmodesmata
Plastoquinones
Endoplasmic reticulum
Endoplasmic reticulum
Which one of the following structures in Pheretima is correctly matched with its function?
Clitellum - Secretes cocoo
Gizzard - Absorbs digested food
Setae - Defence against predators
Setae - Defence against predators
The ciliated columnar epithelial cells in humans are known to occur in
bronchioles and fallopian tubes
bile duct and oesophagus
fallopian tubes and urethra
fallopian tubes and urethra
Which one of the following aspects is an exclusive characteristic of living things?
Isolated metabolic reactions occur in vitro
Increase in mass from inside only
Perception of events happening in the environment and their memory.
Perception of events happening in the environment and their memory.
Frogs differ from humans in possessing
paired cerebral hemispheres
chymotrypsin
trypsin
trypsin
