Question 2 (3 points) For natural selection to occur, three things much be true. Which of the following is
NOT one of those?
one trait must be favorable to survive within the ecosystem
there must be a variation within the traits of the population
the trait must be resistant to mutations
the trait must be passed on to the next generation

How do you date a sample of rock that you suspect as being one of the earliest on earth

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass