Biosphere is best described as
all parts of the earth where life exists
the non-living parts of an ecosystem
a components of an ecosystem
all the members of a single species in a habitat
Correct answer is A
No explanation has been provided for this answer.
first lower premolar and third upper molar
first lower molar and third upper premolar
second lower premolar and first lower molar
first lower molar and last upper premolar
Correct answer is D
No explanation has been provided for this answer.
The break-down of food in a simple, soluble and absorbable end-products is termed
absorption
ingestion
nutrition
digestion
Correct answer is D
No explanation has been provided for this answer.
An organism is considered a heterotroph when it
feeds on inorganic food
feeds on already manufactured food
fixes atmospheric nitrogen
respires anaerobically
Correct answer is B
No explanation has been provided for this answer.
The deficiency of vitamin D and calcium ions in the diet of a human causes
anaemia
night-blindness
kwashiokor
rickets
Correct answer is D
No explanation has been provided for this answer.