1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aleonysh [2.5K]
3 years ago
10

What are the three most commonly used instruments for the determination of free-living physical activity and energy expenditure?

Biology
1 answer:
satela [25.4K]3 years ago
6 0
The most used instruments for the determination of free-living physical activity and energy expenditure are; whole-room indirect calorimeter, Accelerometers and pedometers and also the Doubly-Labeled Water. Indirect calorimetry measures gas exchange from which energy expenditure can be estimated, Double labeled water is the most relevant method for measuring free-living energy expenditure in animals and humans, it is based on exponential disappearance from the body of the stable isotopes (H and O) after a bolus dose of water. Accelerometers and pedometers provide an inexpensive overall measure of physical activity, however they are unable to asses the intensity, frequency and duration of activity or to estimate energy expenditure.

You might be interested in
What is 0.55 hectometers expressed in decimeters?
Fed [463]

Answer:

A 550

Explanation:

0.55 hectometers is equivalent to 550 decimeters.

7 0
3 years ago
Sketch and label a food-web that includes at least 6 different items. Make
astra-53 [7]

Answer and Explanation:

Example of a food-web:

(1) Algae --> (2) Protozoas --> (3) Krill --> (4) Cephallopods --> (5) Medium sized dolphin --> (6) Large Dolphin

The trophic web is the process of energy transference through a series of organisms, in which every organism feeds on the preceding one and becomes food for the next one.

1) The first link is an autotroph organism or producer, such as a vegetable, that can synthesize organic matter from inorganic matter. In this example, the autotroph organisms are algae, that make use of sunlight and inorganic matter.

The next links are the consumers:

2) Herbivores are primary consumers and feed on producers. In this example, herbivore organisms are protozoan.

3) Krills are the secondary consumers and feed on protozoans.

4) Some species of cephalopods feed on krill, among other species.

5) Specialized Cetaceans such as the Risso´s dolphin, feed especially on cephalopods, as they lack upper teeth and they only have a few teeth in their jaws.

6) The killer whale is a big sized-dolphin and a very important predator. It feeds on many animals, and one of them is the Risso´s dolphin.

4 0
3 years ago
Which types of macromolecules are common to both organisms and viruses?
Leni [432]

Answer: A) Proteins and nucleic acids

Explanation:

6 0
3 years ago
Read 2 more answers
Which are evidence of sea floor spreading ? check all that apply.
Thepotemich [5.8K]

The specific magnetism of basalt rock is determined by the Earth's magnetic field when the magma is cooling. Scientists determined that the same process formed the perfectly symmetrical stripes on both side of a mid-ocean ridge. ... Oceanic crust slowly moves away from mid-ocean ridges and sites of seafloor spreading.

5 0
3 years ago
What process accounts for species diversity?
Alex_Xolod [135]
Meiosis is the process that accounts for diversity.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Ou determine that a victim is unresponsive but breathing. while waiting with the victim for ems personnel, you would position th
    10·1 answer
  • 5. Which one is produced by meiosis?
    7·2 answers
  • Explain how the failure to regulate detrimental practices on private property might have widespread negative environmental conse
    13·2 answers
  • All of the following are examples of organic matter soil except
    9·1 answer
  • After reviewing the laboratory reports of a patient, the nurse finds that the patient has a major injury at the sella turcica un
    12·1 answer
  • A __ is the characteristic or appearance of the organism
    9·1 answer
  • Lanes of young stars gas and dust that wind outward from the central region of spiral galaxies can be identified as
    13·2 answers
  • When 2 alleles are different in the genotype , hybrid
    12·1 answer
  • Engineers design a system for heating the air in a house. They want the
    11·2 answers
  • At the end of mitosis, what develops around each set of chromosomes?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!