Barnacles and mussels are filter feeders that attach themselves to rocks in the intertidal zone. a scientist observed a dense colony of barnacles covering a rock surface. the mussels were limited to the crevices in the same rock. evaluate the observation given the limiting factors in the zone.

Anton created a chart listing different types of materials. which best complete the chart?

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.

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b. organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.