Biology Past Questions and Answers

The depletion of the ozone layer will result in the earth surface receiving more

Which of the following statements about a mixture of a protein-digesting enzyme and starch solution would be correct?

The protein-digesting enzyme

The mutualism type of relationship is different from a parasitic relationship because in mutualism

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;
Number in the habitat

Organism
	habitat W	habitat Y
Plankton	126	0
Antelope	0	51
Water flea	10	0
Tilapia	23	0
Lion	0	6
Frog	6	0
Grass	0	250

What type of habitat is W?

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;
Number in the habitat

Organism
	habitat W	habitat Y
Plankton	126	0
Antelope	0	51
Water flea	10	0
Tilapia	23	0
Lion	0	6
Frog	6	0
Grass	0	250

Which of the following statements about habitat W is correct? The