Nitrogen Fixation Is a Process That Makes Nitrogen Available to Plants

question 15

Multiple Choice

Nitrogen fixation is a process that makes nitrogen available to plants and is carried out by___________ .

• A)bacteria
• B)nitrogen gas dissolving in fresh water and in the ocean
• C)volcanic eruptions
• D)plants during photosynthesis

Grasp the significance of countercurrent heat exchange mechanisms in temperature regulation.

Recognize the importance of body fat and fur density in thermoregulation.

Understand the principle and limitations of evaporative cooling in animals.

Distinguish between endothermic and ectothermic temperature regulation strategies.

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Definitions:

Prion

Infectious agents composed of protein in a misfolded form, which can cause rare, progressive neurodegenerative disorders by inducing abnormal folding of specific normal proteins in the brain.

Creutzfeldt-Jakob Disease

A rare, degenerative, invariably fatal brain disorder that affects about one in every one million people per year worldwide.

Bovine Spongiform Encephalopathy

A neurodegenerative disease in cattle that affects the brain and spinal cord, also known as Mad Cow Disease.

Gram-Positive Bacteria

Gram-positive bacteria are a group of bacteria that retain the Gram stain and appear purple under a microscope, often indicating a thicker peptidoglycan cell wall.