What is the food at the top of the food chain with the highest levels of many toxic contaminants?

What is the food at the top of the food chain with the highest levels of many toxic contaminants?

Humans tend to eat fairly high on the marine food chain. Predatory fish – fish that eat other fish that have eaten still other fish and animals – will have some of the highest concentrations of biomagnified chemicals. Many popular fish are also rich in fat and fish oils, which is where many toxins are stored.

What group is at the top of the food chain?

apex predators
At the top of the system are the apex predators: animals who have no predators other than humans.

Why are food webs more accurate than a food chain?

The terms food chain and food web both refer to groups of organisms that are dependent on each other for food. The feeding relationships of organisms in the real world is almost always more complex than suggested by a food chain. For that reason, the term food web is more accurate than is food chain.

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What part of the food pyramid has the highest accumulation of toxic substances?

At each trophic level of the food chain, the toxins remain in the tissues of the animals – so the concentration of toxin becomes most concentrated in the body tissues of the animals at the top of the food chain.

How we are affected by the food chain?

Humans are dominant consumers. They affect food webs through energy production and agriculture, pollution, habitat destruction, overfishing and hunting. Also their demands for food and shelter along with population growth, affecting soil and aquatic ecosystems.

How are affected by the food chain?

A ​food chain​ symbolizes the path of energy within an ecosystem: Primary producers such as green plants translate solar energy into carbohydrates, which are then tapped by primary and secondary consumers and ultimately recycled by decomposers.

How do you explain a food chain to a child?

A food chain shows how each living thing gets its food. Some animals eat plants and some animals eat other animals. For example, a simple food chain links the trees & shrubs, the giraffes (that eat trees & shrubs), and the lions (that eat the giraffes). Each link in this chain is food for the next link.

How do food chains work?

A food chain shows how energy is transferred from one living organism to another via food. When these animals eat these plant products, food energy and organic compounds are transferred from the plants to the animals.

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How do food chains and food webs differ?

A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.

How do food chains and food webs differ which is the more accurate representation of actual feeding relationships in ecosystems?

Why is a food web a more accurate representation of the feeding relationships in an ecosystem than a food chain? A food web shows many different kinds of species and their individual webs, while a food chain shows only the chain of one dominant carnivore. A trophic level is each step in a food chain or food web.

Which of the following are affected by food chain?

Explanation: Humans are consumers in the food chain. Humans depend on other organisms or plants for energy and they can’t generate own energy. Humans eat both plants and animals. Humans can be classified into both primary and secondary consumers based on food chain.

How organisms affect and are affected by their environment including the accumulation of toxic materials?

Toxic materials are poisonous. Some quickly break down into harmless substances in the environment. These substances accumulate in the food chain and damage the organisms in it, particularly in the predators at the end of the chain. This is because accumulating compounds cannot be excreted.

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What is a food chain and food web?

Each living thing is part of many different food chains. A food chain is a path that energy takes throughout a certain ecosystem. Together, all the food chains in an ecosystem make up a food web . Organisms in food webs are grouped into categories. These categories are called trophic levels.

What are the different levels of a food web?

All of the interconnected and overlapping food chains in an ecosystem make up a food web. Organisms in food chains are grouped into categories called trophic levels. Roughly speaking, these levels are divided into producers (first trophic level), consumers (second, third, and fourth trophic levels), and decomposers.

What is the next step in food chaining?

The next step of food chaining involves making small changes to flavor or texture. These changes should be very small and the food audit used as a guide. Typically changes to flavor are attempted first. In many cases the food chain will include both.

What is the bottom level of the ocean’s food chain?

The bottom level of the ocean’s food chain is largely invisible. It is made up of billions of one-celled organisms, called phytoplankton. These tiny organisms fill sunlit upper-ocean waters worldwide.