This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What organism usually fixes nitrogen into usable chemical forms? a. Archaea b. Extremophiles c. ... (Read 51 times)

Melani1276

  • Hero Member
  • *****
  • Posts: 516
on: Aug 22, 2018

What organism usually fixes nitrogen into usable chemical forms?
  a. Archaea
  b. Extremophiles
  c. Cyanobacteria
  d. Dinoflagellates



Question 2

What is a heterotroph?
  a. An organism that creates its own food
  b. An organism that eat other organism
  c. An organism the conducts chemosynthesis
  d. An organism that remains plankton for its entire life



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

tdewitt

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Aug 22, 2018
Answer to Question 1

ANS: C
Bacteria and Cyanobacteria usually fix nitrogen. Nitrogen is often a limiting factor in the ocean.
Information can be found in the section Elements Cycle between Living Organisms and Their
Surroundings.



Answer to Question 2

ANS: B
A heterotrophy must consume food to obtain energy and nutrients. Some consume autotrophs while
others consume other heterotrophs. Information can be found in the section Primary Productivity Is the
Synthesis of Organic Materials



Melani1276

  • Member
  • Posts: 516
Reply 2 on: Aug 22, 2018
Excellent

kishoreddi

  • Member
  • Posts: 329
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

Some of the bacteria that can fix atmospheric nitrogen, converting it into a form usable by plants. Some of the bacteria that can fix atmospheric nitrogen, converting it into a form usable by plants.
Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mus Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mus
Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu Comparison of the chemical structures of psilocybin and LSD. Psilocybin (left) is derived from a mu
The lemurs rediated into a variety of forms, including the sifaka. The lemurs rediated into a variety of forms, including the sifaka.
Chemical structures of four amino acids Chemical structures of four amino acids
Different forms of a gene are called alleles Different forms of a gene are called alleles
Video: Metaphase I Animation

For a complete list of videos, visit our video library