Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.
-
Question 61: A characteristic that best exemplifies the evolutionary advancement of mammals over other vertebrates is the
Options:
A) vivparous mode of reproduction
B) possession of paired limbs
C) terrestrial mode of life
D) possession of a heart
Show Answer
The correct answer is A .
-
Question 62: Which of the following food chains is in the correct sequence?
Options:
A) Weeds → Tadpole → Beetles → Fish → Man
B) Weeds → Tadpole → Fish → Beetles → Man
C) Tadpole → Beetles →Weeds → Man → Fish
D) Man → Fish → Beetles → Tadpole → Weeds
E) Fish → Beetles → Weeds → Man → Tadpoles
Show Answer
The correct answer is A .
-
Question 63: Chewing the cud is an adaptation peculiar to
Options:
A) Herbivores
B) Omnivores
C) Rodents
D) Ruminants
Show Answer
The correct answer is D .
-
Question 64: Night-blindness result from a deficiency of
Options:
A) vitamin E
B) Vitamin A
C) Vitamin K
D) Vitamin C
Show Answer
The correct answer is B .
-
Question 65: The study of how and why population size change over time is
Options:
A) Population estimation
B) Population dynamics
C) Population ecology
D) Population cycle
Show Answer
The correct answer is B .
-
Question 66: One adaptation shown by hydrophytes in freshwater habitats is the
Options:
A) leaves reduced to spines
B) poor development of roots and xylem tissues
C) waxy cuticle on shoot surface
D) well developed roots and supporting system
Show Answer
The correct answer is B .
-
Question 67: The causative agent of Poliomyelitis is
Options:
A) Virus
B) Fungus
C) Protozoan
D) Bacterium
Show Answer
The correct answer is A .
-
Question 68: When the ciliary muscles of the eye contract, the eye lens
Options:
A) Bulge
B) Contracts
C) Rotates
D) Flattens
E) Is rounded
Show Answer
The correct answer is E .
-
Question 69: Plant growth can be artificially stimulated by the addition of
Options:
A) gibberellin
B) kinin
C) abscisic acid
D) ethylene
Show Answer
The correct answer is A .
-
Question 70: Adaptive radiation is illustrated in
Options:
A) modified insect mouthparts
B) dentition in mammals
C) wings in birds and bats
D) appendages in insects
Show Answer
The correct answer is A .