Bacteria which derive energy for food synthesis by oxidizing certain inorganic compounds are said to be

A. chemosynthetic

B. heterotrophic

C. parasitic

D. photosynthetic

E. saprophylic

The result of placing a plant cell in a hypertonic solution for a long time is ________of the cell.

A. crenation

B. flaccidity

C. haemolysis

D. turgidity

E. vasodilation

Which statement about how all life started is NOT true according to current thinking on evolutionary trends?

A. animals to plant life

B. aquatic to terrestrial forms

C. non-specialization to specialization in functions

D. simple to complex forms

E. unicellularity to multicellularity

What is NOT a supporting tissue in plant?

A. collenchymas

B. coracoid

C. parenchyma

D. sclerenchyma

E. xylem

Mammals are said to be homoiothermic because their body temperature is

A. always higher than that of their environment

B. always lower than that of their environment

C. always the same as that of their environment

D. relatively constant irrespective of that of their environment

E. remains at 37 ^o c all the time

Which statement is NOT true of both meiosis and mitosis?

A. aligning of chromosomes at equator

B. disintegration of nuclear material

C. formation of spindle apparatus

D. halving the number of chromosomes

E. thickening and shortening of chromosomes

Which process does NOT represent a form of reproduction in plants?

A. binary fission

B. budding

C. conjugation

D. regeneration

E. vegetative propagation

Which organelle is responsible for photosynthesis?

A. cell wall

B. chloroplast

C. cell membrane

D. nucleus

E. ribosomes

Which characteristic in man is NOT inherited?

A. albinism

B. colour blindness

C. haemophilia

D. night blindness

E. sickle cell aneamia

The interaction between members of the same population over scarce resources is called

A. behavioural adaptation

B. inter-specific competition

C. intra-specific competition

D. morphological variation

E. structural adaptation