Use the list below to answer the question. Cell Structures
.
.
plasma membrane
endoplasmic reticulum
Golgi apparatus
mitochondria
nucleus
ribosomes
.
A scientist identifies several structures in a cell and organizes them in a list.
Part A: Describe how the cell structures in this list can be used to classify the cell as either
prokaryotic or eukaryotic. Use examples of the structures that would help identify the cell in
your answer.

The rate at which molecules water and oxygen can enter a cell is determined by the-

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.

Are the earth's ocean floor and continents the same age geologically? why or why not?