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
Anestetic [448]
3 years ago
8

Suppose an alien life form is discovered on another planet that takes in CH4 from the atmosphere. Which of the following could b

e used to determine what happens to the CH4 after the organism consumes it?
A. chromatography
B. radioactive tracers
C. x-ray diffraction
D. organic synthesis
Biology
1 answer:
sladkih [1.3K]3 years ago
8 0

The right answer is B

A radiotracer is an entity composed of a carrier molecule and a detectable radioactive isotope using devices such as gamma cameras or positron emission tomography.

A radiotracer is either a radioactive isotope alone or the combination of a molecule and a radioactive isotope. In this case, it is said that the molecule is labeled by the radioactive isotope.

A radioactive isotope is an atom whose nucleus, unstable, emits radiation. It could be :

- alpha radiation consisting of two protons and two neutrons.

- a beta radiation consisting of a negative electron (beta) or a positive electron (beta +, positron).

- a gamma radiation consisting of a high energy photon.

You might be interested in
Xam
natka813 [3]

Answer:

Pb has an atomic mass of 82. If an atom of that element has an atomic mass of 80, that atom is known as: an isotope.

8 0
3 years ago
The boundary between the middle and inner ear is the
Kamila [148]
<span>It is separated from the external ear by the
eardrum.</span>
6 0
3 years ago
In a closed system, the total energy prior to an energy transformation is _______ the total energy after. A. equal to B. unrelat
nikklg [1K]
Hey there mate!

Based on my information to this, I believe sense (it would be a closed system), this would most likely be considered to be (equal to) the total energy after.

But, if it was not a (closed system), it would not be unrelated because the energetic system would not be that greatly increased.

So, it really depends whether the system closes up, or whether it would be free of energy.

So, in this case, your correct option to this answer would be (option A).

<span>In a closed system, the total energy prior to an energy transformation is unrelated to the total energy after. 

I hope this helps you!</span>
6 0
3 years ago
Read 2 more answers
Explain how limiting factor may affect your terrarium​
Tpy6a [65]

Answer:

A limiting factor is anything that constrains a population's size and slows or stops it from growing. Some examples of limiting factors are biotic, like food, mates, and competition with other organisms for resources. Others are abiotic, like space, temperature, altitude, and amount of sunlight available in an environment. Limiting factors are usually expressed as a lack of a particular resource. For example, if there are not enough prey animals in a forest to feed a large population of predators, then food becomes a limiting factor. Likewise, if there is not enough space in a pond for a large number of fish, then space becomes a limiting factor. There can be many different limiting factors at work in a single habitat, and the same limiting factors can affect the populations of both plant and animal species. Ultimately, limiting factors determine a habitat's carrying capacity, which is the maximum size of the population it can support.

Explanation:

https://www.nationalgeographic.org/topics/limiting-factors/?q=&page=1&per_page=25

7 0
3 years ago
If b represents the allele for black eyes (dominant) and b represents the allele for orange eyes (recessive), what would be the
Sever21 [200]
<span>1 black: 1 orange The heterozygous black-eyed MendAlien has the genotype Bb. The orange-eyed MendAlien has the genotype bb. The result of this cross is two Bb offspring and two bb offspring. This means that two of the offspring have black eyes and two of the offspring have orange eyes. This 2:2 ratio then reduces to 1:1</span>
3 0
4 years ago
Other questions:
  • In which environment would you find dolphins
    10·1 answer
  • How do earthworms get oxygen to their cells?
    14·1 answer
  • Identify the best resource for someone who is mildly depressed.
    11·1 answer
  • Select the statement that is true concerning primary teeth.
    11·1 answer
  • If a couple had a baby who died asen not have any more babies
    9·1 answer
  • Links will be reported. Please only respond if you know the answer
    7·1 answer
  • The theory of evolution is controversial among some people, but not among scientists. Lots and lots of evidence support this the
    7·2 answers
  • What geologic activity is especially
    5·2 answers
  • Help me please i need to pass
    6·1 answer
  • Collin often experiences a runner's high during his daily 3-mile run. this is most likely produced by neurotransmitters in his b
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!