GIVING BRAINLIEST Which statement about the relationship between different types of triangles is true?

A) An equilateral triangle is never an obtuse triangle.
B) An equilateral triangle is never an isosceles triangle.
C) A right triangle is always an isosceles triangle.
D) An obtuse triangle is always an acute triangle.

The hershey and chase experiments involved the preparation of two different types of radioactively labeled phage. which of the following best explains why two preparations were required? a. the bacteriophage used in the experiments was a t2 phage. b. it was necessary that each of the two phage components, dna and protein, be identifiable upon recovery at the end of the experiment. c. each scientist had his own method for labeling phage, so each conducted the same experiment using a different isotope. d. establishing the identity of the genetic material required observation of two phage generations.