Science solution classes

Q. Mammals ,animals, and dogs represent ?
( 1) same taxa at same levels
( 2)same taxa at different levels.
( 3) Different taxa at same level .
( 4) Different taxa at different levels.

Root shows negative geotropism in ?
A) photos
B)ficus
C)grass
D) Rhizophora

OPERON MODEL BY JACOB AND MONAD IMPORTANT FOR BOARD EXAM

Genetic codon by डॉक्टर हरगोविंद जी इम्पोर्टेन्ट फॉर बोर्ड एग्जाम यूपी बोर्ड