Accommodation of the human eye is best described as the
ability to see distant objects
movement of upper and lower eyelids
focusing of near and distant objects
changing of lens shape due to varying light intensities
constant adjustment of the iris
Correct answer is C
No explanation has been provided for this answer.
In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces
alcohol
oxygen
carbon dioxide
energy
ethanol
Correct answer is C
No explanation has been provided for this answer.
All the following are digestive enzymes except
bile
lipase
maltase
pepsin
ptyalin
Correct answer is A
No explanation has been provided for this answer.
The two types of human tapeworm can be distinguished by the presence or absence of
scolex
hook
head
sucker
proglottis
Correct answer is B
No explanation has been provided for this answer.
What is name of the respiratory organ of the crab?
Tubules
Trachaea
Spiracles
Lungs
Gills
Correct answer is D
A branchiostegal lung is a respiration organ used by some air-breathing arthropods.
It is one of the most significant adaptations of some crabs and hermit crabs such as the coconut crab to their terrestrial habitats.