Which reagent is used to test for the presence of starch in a food substance?
anhydrous copper (II) sulphate
Fehling’s solution
iodine solution
iron(III) oxide
Million’s reagent
Correct answer is C
No explanation has been provided for this answer.
Iron is mainly required by plants for_________formation.
Chlorophyll
glucose
protein
nuclear
nucleproteins
Correct answer is A
No explanation has been provided for this answer.
A group of interacting populations in a particular habitat can be described as
biome
biosphere
community
ecosystem
environment
Correct answer is C
No explanation has been provided for this answer.
Which division is NOT part of the atmosphere?
hydrosphere
mesosphere
stratosphere
thermosphere
troposphere
Correct answer is A
part of the atmosphere includes: the troposphere, stratosphere, mesosphere and thermosphere
What is NOT characteristic of fresh water habitats?
high osmotic concentration
low oxygen concentration
they are flooded during the rainy season
temperature changes daily
they have limited size-and depth
Correct answer is A
No explanation has been provided for this answer.