A food chain is the order in which we can see which predators eat which prey. Food chains are easier to understand at a glance then a food pyramid.
The total number or fossils discovered by paleontologists, and the information you get from them.
Im assuming this is the question:
You have been studying a large lake ecosystem. You learn that toxins have been dumped into the water. You predict that the population with the highest concentration of the toxin would be the
ducks
zooplankton
algae
predatory birds
small fish
The answer to that question is predatory fish. In contaminated areas, bottom-dwelling fish are especially likely to have high levels of these chemicals because these substances settle to the bottom where the fish feed.
Here's an article to help in case:
https://www.doh.wa.gov/CommunityandEnvironment/Food/Fish/ContaminantsinFish
Ribosomes is responsible for the production of proteins in the cell.
<h3>What is ribosomes?</h3>
A ribosome is a cellular organelle which is made of RNA and protein that serves as the site for protein synthesis in the cell. Ribosomes are present in cells that prepares large amounts of protein so we can conclude that Ribosomes is responsible for the production of proteins in the cell.
Learn more about proteins here: brainly.com/question/884935
The oxygen it gives out and the variety of resources of food and water