Investigate sea otters helped scientists identify a decline in the population. This, in turn, led to efforts to protect the sea otters and work to ensure that the population growths. 1.What metods might scientists have used to study the sea otters population in California?

2.How could these methods have helped identify a problem with the sea otter population?(explain).

Chlorophyll is found in plant leaves and absorbs light from the sun to enable plants to perform photosynthesis. magnesium is an important component of chlorophyll. the concentration of magnesium ions is higher in the root-hair cells of plants than in the soil. which mechanism of ion uptake would best enable a plant to produce a steady supply of chlorophyll? osmosis diffusion passive transport active transport

Nucleic acid certain protein cell membranes certain carbohydrates

The color of the fur is the genotypephenotype.the genetic combination of alleles that determine the fur color is called the genotypephenotype.