Why are there limited levels of consumers? For example, apex predators are usually tertiary or quaternary consumers. Why don't we have many 5th, 6th, or 7th level consumers?

Where is the nucleolus located in the cell? What molecule does the nucleolus produce and what is the function of this molecule?

Describe transcription and translation

A mutualistic relationship between an animal and a fungus might be

What do you think would be the most frustrating or difficult part of dna analyst?

A (n) called asthma occurs when the muscles that surround the bronchioles constrict.

What aspects of abundance do population density and population size measure, respectively?

What's an example of a multicellular producer

Are microorganisms alive and do microorganisms affect humans

Which statement best describes the process of chemiosmosis and the direct result of its occurrence? A. The choices are Hydrogen ions flow from the thylakoid down a concentration gradient through ATP synthase channels into the stroma.

Describe how human activities threaten polar bears in the arctic