Please Help An ecosystem contains organisms interacting with each other and their physical environment. Which of these is the BEST indicator of a healthy ecosystem
A. There are few decomposers
B. There are many different species.
C. There are few herbivores.
D. There is a large population of only one species.

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'