Pedro listed characteristics of two types of protists in a chart.

Two Groups of Protists

X
Often multicellular
Are usually autotrophic
Include euglenoids

Y
Are heterotrophs
Reproduce using spores
Include different molds

Which headings best complete the chart?

X: Plant-Like Protists
Y: Animal-Like Protists

X: Animal-Like Protists
Y: Plant-Like Protists

X: Fungus-Like Protists
Y: Plant-Like Protists

X: Plant-Like Protists
Y: Fungus-Like Protists

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.

An easy way to calculate the amount of energy available at each level is to what?

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?