Given below are two statements:
Statement I: Gause's competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause's principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.
In the light of the above statements, choose the correct answer from the options given below :
Match List I with List II related to digestive system of cockroach.
List - I | List - II | ||
---|---|---|---|
A. | The structures used for storing of food | I. | Gizzaard |
B. | Ring of 6-8 blind tubules at junction of foregut and midgut. | II. | Gastric Caeca |
C. | Ring of 100-150 yellow coloured thin filaments at junction of midgut and hindgut. | III. | Malpighian tubules |
D. | The structures used for grinding the food. | IV. | Crop |
Choose the correct answer from the options given below:
The following are the statements about non-chordates:
A. Pharynx is perforated by gill slits.
B. Notochord is absent.
C. Central nervous system is dorsal.
D. Heart is dorsal if present.
E. Post anal tail is absent.
Choose the most appropriate answer from the options given below:
Choose the correct statement given below regarding juxta medullary nephron.