A structural similarity between Paramecium and Amoeba is the presence of______
one food vacuole
two contractile vacuoles
two nuclei
one gullet
Correct answer is A
No explanation has been provided for this answer.
An example of organ level of organization is _______
bird
kidney
spermatozoon
xylem
Correct answer is B
No explanation has been provided for this answer.
adaptation
survival
organic evolution
interspecific competition
Correct answer is C
No explanation has been provided for this answer.
Which of the following is NOT characteristic of social insects?
All members are identical
There is division of labour
The members dwell in the same habitat
Some members protect the queen
Correct answer is A
No explanation has been provided for this answer.
One of the structural adaptations of mammals for movement on land is the development of the
hollow bones
pentadactyl limbs
fused thoracic bones
streamlined body
Correct answer is B
No explanation has been provided for this answer.