food chain

« previous next »

Author Question: food chain (Read 734 times)

pratush dev

Sr. Member
Posts: 321

on: Dec 7, 2014

A food chain comprises a number of trophic levels. Which is the trophic level vulnerable to extinction?

Celeste

Hero Member
Posts: 588

Reply #1 on: Dec 7, 2014

I believe it's all but the primary producers. Do you have a list of options?

Need homework help now?

Ask unlimited questions for free

Ask a Question

« previous next »

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.