Question # 1

Biospher surrounding the earth is about:

17 km

18 km

19 km

20 km

By which method sponges, hydra and corals reproduce?

Fragmentation

Spores

Regeneration

Budding

The optimum temperature for the germination of the seeds of most plants ranges from:

20 - 30 ^oC

25 - 35^oC

25 - 30^oC

20 - 25^oC

It is a situation where in heterozygous genotypes, both the alleles express as a blend and neither allele is dominant over the other:

Incomplete dominance

Co-dominance

Complete dominance

None of these

The pathway followed by the nerve impulses for producing a reflex action is called.

Reflex action

Reflex arc

Neuron

Spinal card

These are horizontal underground stems:

Tubers

Rhizomes

Suckers

None

Biology Life Science Test Easy Mode MCQs With Answers