What is a scientific theory? Question 3 options:

a testable guess that predicts how variables are related in an experiment or model system, often expressed as an if-then statement

an explanation of that natural world that has been repeatedly confirmed through observation and experimentation and is accepted by the scientific community

a guess or prediction about the natural world with no evidence that some people believe and some people do not believe

the description of the relationships between observable phenomena

i'd say that the moon rock is about 2.2 billion years old.

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.

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.'

a = executive branch; b = judicial branch