In the mammalian respiratory system. exchange of gases occurs in the?

Aged erythrocytes are destroyed in the?

(a)(i) State the agricultural classification of specimens M and N.

(ii) What advantage does the cultivation of specimen M have over the cultivation of specimen N? 

 (b) State (i) the main classes of food in each of Specimens M and N. (i) the functions of the food classes named in 4(b)(i) above.

(c)(i) Describe the state of specimens M and N.

(ii) Name the pest responsible for the state of specimens M and N.

(iii)  State the phylum and class of the pest with reasons.

(iv) Name two other crops which tne pest infests.

(d)i) State three adaptive features of the pest to its mode of life.

(ii) State four ways of preventing the activity of the named pest.

 (e) State two other pests that can infest specimens M and N

The villus in the small intestine is significant because it?

Which of the following food substances will produce a brick-red colour when warmed with Benedict's solution?