Which of these is an example of bioaccumulation?

a. an increased growth in microorganisms results in oxygen depletion .
b. the mercury contained in fish builds up on animals that eat the fish.
c. there are millions of cholera cases per year due to contaminated water.
d. materials that contain metal are toxic to organisms that live in them.

An example of bioaccumulation is b. the mercury contained in fish builds up on animals that eat the fish. This is because bioaccumulation is defined as a steady build up over time of a chemical in a living organism.

In the example, mercury is the chemical that builds up on animals that would eat the contaminated fish.

phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation

the correct answer is: d. the saltine and pretzel are made of flour, yeast, and baking soda, and salt. the pecan contains no flour but it does contain fats. the pecan is a nut that can be consumed as a healthy snack. first of all, pecans are a source of fat (monounsaturated fat), but they provide less fat than some other nuts. pecans are a rich source of dietary fiber, manganese magnesium, phosphorus, thiamin, vitamin e…