How does a whale-fall community affect ocean sediment? a.)the decomposition of the whale enriches the sediment. b.)the remains of the whale pollute the sediment. c.)the sediment is transformed into food for mussels and crabs. d.)the bacteria that are attracted break down the sediment nearby.

Which example would the nurse consider to be a part of systems thinking theory?

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.