Which option correctly identifies the building blocks (monomers) and a key function of nucleic acids?

How do DNA sequences within mitochondria and chloroplasts provide strong support for the endosymbiotic theory?

How does storing food in a hypertonic environment (e.g., heavily salting meat) help preserve it from microbial spoilage?

In which type of bond are electrons shared equally between two atoms?

During an immune response, a T-cell releases interleukin-2 (IL-2), which then binds to receptors on the same T-cell, stimulating its own proliferation to amplify the immune response. This is an example of what type of signaling?

Which of the following questions is considered testable using the scientific method?

For proteins, what is their monomer, and what is one of their crucial roles in biological systems?

According to the rules of binomial nomenclature, which of the following is the correct way to write the scientific name for a domestic cat?

A student observes that plants grown in soil with added coffee grounds seem to grow taller. Based on this observation, which of the following is the best testable hypothesis?

An environmental scientist notices that fish populations in a lake decline significantly after heavy rainfall. Which of the following is a testable hypothesis based on this observation?