The rods originally contain the fuel for nuclear reactions, which mean they are highly radioactive. The radiation they emit is very dangerous and harmful to all types of life; therefore, they must be handled with care and disposed of properly to minimize damage because of them.
Ans.
Cell-to-cell communication allows signalling of essential substances between the plant cells, which are surrounded by cell walls. The molecules used by plants for long-distance signalling are known as hormones, such as auxin, ethylene, and gibberelin.
These hormones are secreted by one plant cell and received by another plant cell, where it exerts it affect. Thus, the correct answer to be fill in the blank is 'option A). hormones.'
The answer is C.
Chromosome are dark staining structures in a cell nucleus on which the organism genes (DNA Molecules) are arranged, -I.e Chromosome are the carriers of genes
Spinal cord is the part of the central nervous system which is used to serve as the main communication link between the body and brain
The Spanish fly is a species of a beetle `
