In a human body, which of the following represents the highest level of structural organization?

A An atom in the lung.

B Lung tissue

C The lungs

D The respiratory stystem

the kingdom, one of six kingdoms of life, is known for it's ability to survive in extreme enviroments

Which is an example of how ecosystem on earth affect each other

A 77-year-old woman is concerned because she has occasionally found her husband sleepwalking in the last several weeks. what is her care provider's most appropriate response to her concerns?

Describe binary fusion.

Which of the following is the primary advantage of sexual reproduction when compared to asexual reproduction? A. There is a greater number of offspring. B. There is more food available to offspring. C. There is greater genetic variety in offspring.

What is unique about dogs?

3. The best thing you can do to keep a positive relationship with your supervisor is to

What contains both communities and ecosystems?

Which of the following represents a way that animals in a zoo are influenced by their environment? a. increased natural instincts b. decreased aggression c. unnatural behavior d. increased appetite

when the process of mitosis is correctly completed, the daughter cells should contain exact copies of all of on organisms genes. which biomolecule contains all of the organisms genes