Home
Class 11
BIOLOGY
Identify the correct statements from the...

Identify the correct statements from the below .
(I) Oesophagus is a thin long muscular tube.
(II) A cardiac sphincter (gastro oesphageal sphincter) regulates the opening of oesophagus into the stomach .
(III) The oesophagus and the trachera (wind pipe) open into the pharynx.
(IV) Two masses of lymphoid tissue called tonsils are also located at the sides of the pharynx.

A

I , II , and III only

B

I , II , and IV only

C

II , III and IV only

D

I , II , III and IV

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Identify the correct statements from the below about ''Cymose'' (I) Main axis of limited growth (II) Opening of flowers is centrifugal. (III) Oldest flower at the top. (IV) Oldest flower at the base

Identify the correct statements from the below. (I) Vertebral column is also called the back bone. (II) It consists of 33 serially arranged vertebrae. (III) The vertebral column has six major regions. (IV) Each vertebra has a central hollow portion.

Identify the correct statements from the below about "pancreas" . (I) Second largest gland in the digestive system is the pancreas (II) It is a Red coloured . (III) It is situated between the limbs of the 'U' shaped duodenum. (IV) The pancreatic duct directly opens into the duodenum.

Identify the correct statements from the below about "Sponges". (I) They have a opening called spongocoel. (II) They reproduce asexually by gemma formation. (III) Nutrition is intracellular. (IV) Canal system is present.

Identify the correct statements from the below about ''Carotenoids''. (I) Carotenoids are yellow to orange pigments (II) Mostly tetraterpens (III) These pigments protect chlorophyll from photooxidative damage. (IV) Also they are called tetraterpenoids

Identify the correct statements from the below (I) Erythrose is used for synthesis of anthocyanin. (II) Organisms can respire in the absence of oxygen and the process is called fermentation. (III) Respiration occur in the presence of oxygen in called aerobic respiration. (IV) ATP is also called as universal energy currency of the cell.

Identify the correct statements from the below. (I) Mucles are specialized tissues which are derived from the embryonic mesoderm. (II) They are made of cells called myocytes. (III) Constitute 10-20 percent of body weight in an adult. (IV) These cells are bound together by a connective tissue to form a muscular tissue.

Identify the correct statements from the below : about " Actinomycetes". (I) Actinomycetes are also called 'Ray fungi' (II) Produce an aerial mycelium. (III) Their DNA contain high guanine and cytosine , content. (IV) It's also called as Actinobacteria

Identify the correct statements from the below statements . (I) In guard cells starch is converted to malic acid. (II) Stomata open in dark and close in light . (III) Accumulation of CO_(2) in guard cells lowers the pH level. (IV) CO_(2) is a natural antitranspirant

Identify the correct statements from the below about "Lenticel " . (I) Lenticel is raised opening or pore on the epidermis . (II) Formed during secondary growth in stems. (III) Lenticel helpful in exchange of gases. (IV) Formed during primary growth in stems.