I believe the correct answer is natural selection.
Natural competition and the fight for “survival of the fittest” is what pushes diversity the most.
The right matches are :
A. bryophyte ==> 3.
B. pteridophyte ==> 2.
C. gymnosperm ==> 1.
D. angiosperm ==> 4.
These four types of plants are cormophytes.
Bryophyte is a terrestrial plant belonging to the family Bryophyta, which does not have a real vascular system.
Gymnosperms are the first order of didynamy containing phanerogamous plants whose eggs are not enclosed in closed carpels.
Angiosperms are plants whose seeds are enclosed in a closed ovary.
Pteridophytes produce neither flowers nor seeds but are vascular plants.
Answer:
Epstein-Barr virus
Explanation:
Epstein-Barr virus (EBV) is most widespread in the human population. It spreads through bodily fluids such as saliva. EBV is the virus which can cause or affect infectious mononucleosis also known as mono and other illnesses. After you get infected by EBV, the virus become inactive in our body. In some cases, virus may reactive, peoples who's having weak immune system are more likely to develop symptoms if virus is reactive.
Symptoms: Symptoms of EBV includes Fever, swollen liver, rash, enlarged spleen etc.