The number of oysters in the Chesapeake bay has been declining for years. Much of this is due to [blank] white pollution has had a destructive impact as well. A) sharks
B) dead zones
C) over harvesting
D) overpopulation

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled