[Lichens] Which of the following would appear as the pioneer organisms on bare rocks?

For Competitive Exams

Which of the following would appear as the pioneer organisms on bare rocks?

Green algae

Lichens

Liverworts

Mosses

Explanation:

The first biospecies that appears for the first time on bare rock is lichens which is followed by Bryophytes.

Additional Questions

Changes in GnRH pulse frequency in females is controlled by circulating levels of:

Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain:

Photosensitive compound in human eye is made up of:

Specialised epidermal cells surrounding the guard cells are called:

Which of the following features is not present in the Phylum – Arthropoda?

Reduction in pH of blood will:

Which of the following characteristic features always holds true for the corresponding group of animals ?

Match the terms in Column I with their description in Column II and choose the correct option:

Column I	Column II
(a) Dominance	(i) Many genes govern a single character
(b) Codominance	(ii) In a heterozygous organism only one allele expresses itself
(c) Pleiotropy	(iii) In a heterozygous organism both alleles express themselves fully
(d) Polygenic inheritance	(iv) A single gene influences many characters

Code:
(a) (b) (c) (d)

A typical fat molecule is made up of:

Proximal end of the filament of stamens attached to the:

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