In the wall of alimentary canal, what is the actual sequence from outer to inner layer?
(a) serosa, longitudinal muscle, mucosa, submucosa
(b) mucosa, serosa, longitudinal muscle
(c) serosa, longitudinal muscles, circular muscle, sub mucosa, mucosa
(d) serosa, longitudinal muscle, submucosa, mucosa

In T.S. Pheretima, the correct sequence of body wall layers from outer to inner side (a) Circular muscles (b) Parietal peritoneum ( c) Epidermis (d) Cuticle (e) Longitudinal muscles

The innermost layer in the wall of alimentary canal is (a) serosa (b) muscles (c) mucosa (d) submucosa

Outermost layer in the wall of alimentary canal is (a) Muscularis (b) Serosa (c) Submucosa (d) Mucosa

Read the following statements about phylum Annelida. Identify the true and false statements and select the correct option after referring to the given table . A. Annelids are diploblastic , metamerically segmented , coelomate animals. B. Their neural system consists of paired ganglia connected by lateral nerves to a single ventral nerve cord . C. They process longitudinal and circular muscle fibres which help in locomotion . D Nephridia help them in osmoregulation and excretion.

Find out the CORRECT Statement. (a) Ciliated epithelium present in convoluted parts of nephric tubule absorb only has striated involuntary muscles. (b) Haversian canals are interconnected by canaliculi and lacunae. (c) Abdominal wall in our body has striated involuntary muscles. (d) Elastic cartilage is present in the tip of our nose

Consider the following statements? (a) Before birth, foramen ovale allows the blood to pass from right atrium to left atrium , thus bypassing the pulmonary circulation , (b) Heart is protected by a double walled pericardium , (c) The muscle fibres present in heart are different from smooth muscles in being mesodermal in origin , (d) Nodal tissues like AVN, SAN are specialised neural tissues which are distributed in heart. How many among the statements mentioned above are correct?

Read the following four statements (A - D ) : A. The small intestine is the principle organ for the absorption of nutrients. B. In constipation , the faeces are retained within the rectum as the bowel movements occur irregularly. C. The gross calorific value of fat is 4.1 kcal/g. D. The innermost layer lining the lumen of the alimentary canal is the serosa. How many of the above statement are wrong? (a) Four (b) Three (c) Two (d) One

Which Statement among the following are CORRECT ? I. The upper surface of the tongue has small projections called papillae, some of which bear taste buds. II. The serosa is the innermost layer of the alimentary canal and is made up of a thin mesothelium ( epithelium of visceral organs ) with some connective tissue . III. The liver is the largest glands of the body weighing about 4.3 to 5 kg in an adult human. IV. During the process of digestion, the stomach stores the food for 2 - 3 hours. (a) I and III (b) II and IV (c) I and IV (d) II and III

Select correct statements related to the human female reproductive system i. The wall of the uterus has three layers of tissue i.e., mesometrium, ii. The endometrium is the inner glandular layers that lines the uterine cavity. iii. Myometrium is the middle thick layer of smooth muscle which exhibits strong contraction during delivery of the baby. iv. The endometrium undergoes cyclical changes during the menstrual cycle. (a) i and iv (b) ii and iv (c) ii, iii and iv (d) i,ii,iii and iv

Read the assertion and reason carefully to mark the correct option out of the option given below: Assertion: Thick layers of muscles are present in the wall of alimentary canal. Reason: These muscles help in the mixing of food materials with the enzymes coming from different glands in the alimentary canal.