Select the correct route for the passage of sperms in male frogs:
1. | Testes → Vasa efferentia → Kidney → Seminal Vesicle → Urinogenital duct → Cloaca |
2. | Testes → Vasa efferentia → Bidder's canal → Ureter → Cloaca |
3. | Testes → Vasa efferentia → Kidney → Bidder's canal → Urinogenital duct → Cloaca |
4. | Testes → Bidder's canal→ Kidney→ Vasa efferentia → Urinogenital duct→ Cloaca |
In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilization?
1. | Gamete intracytoplasmic fallopian transfer |
2. | Artificial insemination |
3. | Intracytoplasmic sperm injection |
4. | Intrauterine transfer |
Which ecosystem has the maximum biomass?
1. Grassland ecosystem
2. Pond ecosystem
3. Lake ecosystem
4. Forest ecosystem
Lungs are made up of air-filled sacs, the alveoli. They do not collapse even after forceful expiration, because of:
1. Inspiratory Reserve Volume
2. Tidal Volume
3. Expiratory Reserve Volume
4. Residual Volume
Presence of plants arranged into well-defined vertical layers depending on their height can be seen best in:
1. Tropical Rain Forest
2. Grassland
3. Temperate Forest
4. Tropical Savannah
Which of the following statements is correct?
1. | The descending limb of loop of Henle is impermeable to water. |
2. | The ascending limb of loop of Henle is permeable to water. |
3. | The descending limb of loop of Henle is permeable to electrolytes. |
4. | The ascending limb of loop of Henle is impermeable to water. |
Alexander Von Humboldt described for the first time:
1. Laws of limiting factor
2. Species-Area relationships
3. Population Growth equations
4. Ecological Biodiversity
Zygotic meiosis is characteristic of?
1. Fucus
2. Funaria
3. Chlamydomonas
4. Marchantia
If there are 999 bases in an RNA that codes for a protein with 333 amino acids, and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1. 11
2. 33
3. 333
4. 1
Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by:
1. Bee
2. Wind
3. Bat
4. Water