What type of evidence provides the oldest direct proof of life on Earth?

Which of the following statements correctly distinguishes plant cells from animal cells?

Which of the following domains of life is primarily characterized by organisms without a nucleus?

Which of the following best describes functional groups in biological molecules?

Which phenomenon is described as periods of significant climate change leading to global glaciations?

Which organelle in eukaryotic cells contains chromatin?

Which of the following organelles is NOT a component of the Endomembrane System of eukaryotic cells?

Which of the following features is characteristic of bacteriophages?

What is the primary focus of systematics in biological research?

In cladistics, what is the function of outgroup comparison?