1.The micronucleus of paramecium is primarily involved in___
- A. heredity and reproduction
- B. growth
- C. metabolism
- D. feeding
2.___carry impulse from the main nervous system towards a gland.
- A. motor nerve
- B. effectors
- C. response
- D. muscle
3.The interaction of different kinds of organisms that occur together at a particular place is called___
- A. ecosystem
- B. community
- C. biome
- D. ecology
4.The presence of two distinct types of nuclei is called___
- A. nuclear metamorphosis
- B. nuclear dimorphism
- C. nuclear polymorphism
- D. nuclear reaction
5.____is the site of information processing.
- A. central nervous system
- B. peripheral nervous system
- C. cerebral hemisphere
- D. dicephalon
6.The set of organisms together with the non-living factor with which it interacts is___
- A. ecology
- B. community
- C. biome
- D. ecosystem
7.Which of the following organisms does not exist as a single living cell?
- A. chlamydomonas
- B. Volvox
- C. endorina
- D. amoeba.
8.Muscles or glands which on receiving impulse from the brain or spinal cord contract or secrete substances
- A. effectors
- B. response
- C. receptors
- D. nerve
9.Spirogyra, Euglena and Chlamydomonas share many characteristics except ___
- A. nutrition
- B. reproduction
- C. mobility
- D. irritability
10.A wave of electrical disturbance that travels across the nerve cell and its fibres___
- A. sensory
- B. nerve
- C. motor
- D. impulse
11.Inbreeding endangers a small population than a large population
- A. true
- B. false
- C. undecided
- D. a and b
12.Which of the following organisms exist as a filament?
- A. euglena
- B. volvox
- C. eudorina
- D. spirogyra
13.An agent that results in the change of the activities of the organism is___
- A. stimulus
- B. impulse
- C. response
- D. nerve
14.The portion of the cell cycle in which the condensed chromosomes are not visible___
- A. chiasmata
- B. metaphase
- C. interphase
- D. prophase
15.Anaerobic respiration in yeast produces___
- A. carbon dioxide and ethanol
- B. carbon dioxide and water
- C. carbon dioxide and glucose
- D. ethanol and water
16.Change in the activity of the organism caused due to stimulus ___
- A. gland
- B. neurons
- C. motor
- D. response
17.Mammals that lay eggs are called___
- A. marsupial
- B. amphibians
- C. placental
- D. monotremes.
18.The following animals have four chamber in their heart except ___
- A. lizard
- B. man
- C. goat
- D. dog
19.The following living organisms are eukaryotic except ___.
- A. spirogyra
- B. amoeba
- C. bacteria
- D. volvox
20.Animals which have true body cavity are referred to as ___.
- A. coelomate
- B. acoelomate
- C. choelomate
- D. pseudocoelomate.