The axial skeleton is composed of the
skull and vertebral column
limbs and girdles
atlas and axis
radius and ulna
Correct answer is A
No explanation has been provided for this answer.
Excretion in Paramecium sp. is by diffusion because
its habitat is water and moist places
it has simple, small, and few internal organs
it has a large surface area to volume ratio
it has a large efficient meganucleus
Correct answer is C
No explanation has been provided for this answer.
In cellular respiration, energy is made available to organisms by
removal of a phosphate group from ADR
breaking off a phosphate group from ATP
adding a phosphate group to glucose
breaking off a hydrogen ion from NADPH
Correct answer is B
No explanation has been provided for this answer.
The mechanism for opening and closing plant stomata is based on
turgidity and diffusion
turgidity and flaccidity
osmosis and diffusion
diffusion and flaccidity
Correct answer is B
No explanation has been provided for this answer.
Which of the following processes involves diffusion?
Opening and closing of stomatal pores
Turgidity of herbaceous plants
Absorption of water through the root hairs
Absorption of digested food into the villi
Correct answer is D
No explanation has been provided for this answer.