Biology Test 29...

What type of growth do plants exhibit?

Statement: Lichens are excellent indicators of air pollution.

Identification of Organism require -

Which of the following is a form of asexual reproduction?

Assertion (A): Mosses are capable of absorbing water and nutrients directly through their leaves.

Reason (R): Mosses lack a true vascular system, which is typically responsible for the transport of water and nutrients in higher plants.

After arranging the Taxonomic categories in descending order the no of common characteristic -

What is the main plant body in Bryophytes?

Assertion (A): Cycads have coralloid roots that participate in nitrogen fixation.

Reason (R): Coralloid roots form a symbiotic relationship with cyanobacteria, which are capable of fixing atmospheric nitrogen.

Which part of the algae is used as a solidifying agent in culture mediums?

Assertion (A): Algae contribute to nearly 50% of the total photosynthesis on Earth.

Reason (R): Algae have a wide range of photosynthetic pigments that allow them to efficiently capture light energy.