Answer:
In an experiment, the researcher needs to have a control group with an experimental group where both groups are identical in every way except that the controlled group does not gets the experimental treatment.
Sometimes, it is not possible to do a test or the experiment utilizing a controlled trial (due to ethical reasons or no practical method available). All things considered, a researcher may test a theory by making predictions about outcomes or patterns that ought to be found in nature if the hypothesis is right.
Answer:
1. short, single strands
Explanation:
Unlike DNA, RNA is single-stranded. A strand
It tells you that they descended from a common ancestor.
For the first question the answer is Linnaeus
For the second question the answer is D, Organisms can be classified based on similar traits
For the third one the answer is C, the black snakes will survive and reproduce passing their traits to their offspring...
For the last one it’s A, some insects in a population survive temperature changes and pass their traits on to their offspring
Hope I helped!!
