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 661: The sequence of ear ossicles from the fenestra ovalis is
Options:
A) malleus, incus and stapes
B) malleus, stapes and incus
C) stapes, incus and malleus
D) stapes, malleuls and incus
Show Answer
The correct answer is C .
-
Question 662: Which of the following scenarios is an example of cohesion?
Options:
A) Water molecules stick to the surface of a mirror.
B) Water sticks to the walls of blood vessels.
C) Water molecules stay on the tip of a pine needle because the water is attracted to the surface of the needle.
D) Water molecules stick to one another and form a bead
Show Answer
The correct answer is D .
-
Question 663: A circulatory system is very essential in mammals but not in smaller organisms like Amoeba because
Options:
A) Amoeba lives in freshwater
B) Diffusion is sufficient to transport materials in Amoeba
C) Amoeba lacks blood containing haemoglobin
D) Amoeba exibits anaerobic respiration
Show Answer
The correct answer is B .
-
Question 664: When freshly tapped palm wine was kept overnight it was found to be more alcoholic. This effect must have been due to
Options:
A) the addition of saccharin
B) the addition of sugar
C) the addition of whisky or local gin
D) some complex hydrolytic reaction
E) anaerobic respiration of an organism
Show Answer
The correct answer is E .
-
Question 665:

In the diagram, The economic importance of the larva is that it
Options:
A) is eaten by birds
B) develop into a moth
C) resembles the plant on which it lives
D) feeds on the leaves of crops
Show Answer
The correct answer is D .
-
Question 666:
The type of nutrition shown by spirogyra is
Options:
A) Symbiosis
B) Holozoic
C) Chemosynthetic
D) Holophytic
Show Answer
The correct answer is D .
-
Question 667: The joint between the atlas and axis vertebrae allows for
Options:
A) rotatory movement only
B) up and down or nodding movements only
C) rotatory and nodding movements
D) no movement at all
E) slight movement
Show Answer
The correct answer is C .
-
Question 668:

During reproduction of the organism in figure above the first structure to divide is
Options:
A) 1
B) 2
C) 3
D) 4
E) 5
Show Answer
The correct answer is C .
-
Question 669: The supporting tissue in xylem is most poorly developed in
Options:
A) mangrove swamp plants
B) grassland plants
C) submerged water plants
D) desert plants
Show Answer
The correct answer is C .
-
Question 670:
The part of the mammalian skin involved in excretion is the
Options:
A) sweat glands
B) malpighian layer
C) sebaceous gland
D) horny layer
Show Answer
The correct answer is A .