Compare the karyotype of a person with trisomy 21 and the karyotype of activity 3. Which abnormality can you identify?​

down syndrome or trisomy

21

Explanation:

I believe this is the answer

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: