Asap
1.which of the following is always single stranded?
a dsrna
b dna
c mrna
d dna and rna
2 which of the following is a difference between dna and rna?
a rna has thymine
b rna contains lipids
c most types of rna are double stranded
d they have different sugars
3 which of the following bases are found in rna but not dna?
a guanine
b cytosine
c adenine
d uracil

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: