A biologist is studying how different types of cells, such as muscle cells and nerve cells, combine to form structures with specific functions in the human body. At which level of biological organization is this biologist primarily working?

What property describes an atom’s attraction for electrons in a chemical bond, and why is it important?

Which of the following activities is a direct application of taxonomy?

The property of water responsible for the upward movement of water from the roots to the leaves in tall trees is primarily ______.

I will continue to uphold the “Statement on Academic Integrity” and “Test Taking Instructions” described in the “Agreement on Test Taking” document I agreed to.

What is a key defining feature of a eukaryotic cell?

The endosymbiotic theory proposes that chloroplasts evolved from which of the following?

What is the smallest unit of matter that retains the identity of an element?

SARS-CoV-2, the coronavirus responsible for the disease COVID-19, contains an RNA genome surrounded by a protein capsid (coat) and a lipid envelope (membrane). Its spike proteins enable it to bind to ACE2 receptors of epithelial cells, allowing it to gain entry. Once inside, the virus hijacks the cellular functions and effectively turns the cell into a virus producing factory, with the synthesis of viral genome and proteins allowing virus particles to assemble and exit the cell. This overall process is representative of what viruses in general accomplish when infecting cells. Based on this information and your understanding of the definition of life, are viruses alive? Please explain. Include the following in your answer: Define the characteristics of life Identify which characteristics (if any) apply to viruses Identify which characteristics (if any) do not apply to viruses Explain your rationale for why viruses are or are not alive Your answer should be a paragraph of at least 4-5 sentences. Note that there is not a single answer to this question, but the point is to demonstrate your understanding of viruses and the definition of life!

Which two types of organisms are exclusively composed of prokaryotic cells?