28. True or false: Ground beef labeled "75 percent lean" is a good

choice, since only 25 percent of its calories come from fat.

foods

dried

You are an ecologist who discovers a new species of algae living in the fur of the brown-throated sloth. whose system of naming will you use to classify this new organism?

Which cellular process most directly ensures the formation, growth, and repair of specialized tissues in multicellular organisms?

Which of the following is the largest contributor to the salt ions in the ocean? a. sodium b. chloride c. sulfates d. calcium

Spores are formed in

How do bugs eat food?

Which of these is NOT an environmental concern related to the proposed sulfide mining operation? A) acid mine drainage B) heavy metal contamination C) water and soil contamination D) increasing pH in nearby water sources

Andrea works in an office where frequent outbreaks of colds and viruses occur. however, andrea stays healthy most of the time and rarely misses work.

What are the main ecological roles of bacteria?

How does the immune system work with the circulatory system

After the DNA zips itself back up into a double helix, what does the mRNA do