To be valid a scientific observation needs

What can you conclude about the advantage of the double-layer arrangement of a cell membrane? The cell requires a barrier between itself and its environment. The cell requires the ability to digest and eliminate enzymes.

When teaching the mother of a child diagnosed with phenylketonuria (pku) about its transmission, the nurse should use knowledge of which factor as the basis for the discussion?

During transcription, enzymes bind to a molecule of DNA. Then, the enzymes unwind and separate the DNA's double helical strands. As the molecule unwinds, complementary nucleotides pair with one of the DNA strands to form

What type of bacteria grows best at temperatures between 50°-110°f?

Which is a strategy for reducing the risk of cross-contamination? a. buying prepared food b. buying organic produce c. prepping food early in the day d. frequently wiping cutting boards with paper towels?

Once your ambulance is dispatched to an emergency, you have an obligation to respond. what is this called?

Which of the following cellular adaptations assist many unicellular organisms with locomotion? A. Mitochondria B. Chloroplasts C. Cilia D. Ribosomes

When an accurate experiment is repeated by another scientist, the results A) should be similar to those obtained originally. B) will be identical every time the experiment is repeated. C) should be completely different for a different scientist.

1. Which of the following forms all matter?

True or false Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.