Hello Students: DAY- 17 Morning Coffee with NEET

HELLO STUDENTS: DAY- 17 Morning

SPECIFIC FACTS FROM EVOLUTION FOR NEET BIOLOGY PREPARATIONS :

*Atmosphere of earth just before the origin of life consisted of :

CH4,NH3,H2 and Water vapours.

*Darwin's finches are a good example of :

Adaptive radiation.

*Analogous organs are :

Different in origin but perform similar functions.

*Single step large mutation leading to speciation is also called :

Saltation.

*A population is in Hardy -Weinberg equilibrium for a gene with only two alleles.If the gene frequency of an allele A is 0.7,the genotype frequency of Aa is :

0.42

*The extint human ancestor who ate only fruits and hunted with stone weapons was :

Australopithecus.

* The extint fossil man lived in near East and Central Asia between 1,00,000-40,000 years back used hides to protect their body and  buried their dead is :

Neanderthal man.

*Lichens are considered as pollution indicators.Lichens are found only in very clear environment.Lichens are absent in the area polluted with :

SO2

*The Statement describe the theory of Natural Selection :

Organisms better adapted to their environment have greater reproductive success.

*The Era referred as Golden age of reptiles:

Mesozoic Era.

*This  is a fossilized bird recognised as  connecting link between reptiles and Aves :

Archaeopteryx lithographica

Mr.R.Soundarapandian, MSc, MEd, MPhil, 

PG Asst Zoology 
SIR MCTM Boys Higher Secondary School, 

Purasawalkam Chennai-84.