Why are predators at the top of the marine food chain more likely to contain more toxins in their bodies? a) predators at the top eat more food than other organisms. b) predators at the top will breathe in more polluted air. c) predators at the top accumulate toxins from organisms they eat. d) predators at the top accumulate toxins from themselves.

What is called the "building block" of life?

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.