Jamb Biology Past Questions For Year 1993
Question 31
In H, the cotyledons are carried above the soil because
- A. the epicotyl grows faster than the hypocotyl
- B. the hypocotyl grows faster than the epicotyl
- C. both grow at the same rate
- D. the epicotyl outgrow the radicle
Question 32
In the mammal, the autonomic nervous system consists of
- A. sympathetic and parasympathetic system
- B. brain and spinal nerves
- C. brain and cranial nerves
- D. spinal cord and spinal nerves
Question 33
The most important physical factor which affects an organism living in the intertidal zone of the seashore is
- A. pH
- B. salinity
- C. wave action
- D. temperature
Question 34
Important abiotic factors which affects all plants and animals in the habitat are
- A. temperature and turbidity
- B. rainfall and relative humididty
- C. salinity and wind direction
- D. temperature and rainfall
Question 35
What is the term used to describe the sum total of biotic and abiotic factors in the environment of the organism?
- A. Habitat
- B. Biome
- C. Ecosystem
- D. Ecological niche
