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
Airida [17]
3 years ago
9

16. Which choice best describes methane (CH4)2

Biology
2 answers:
V125BC [204]3 years ago
8 0
The answer is B. amino acid
const2013 [10]3 years ago
5 0

Answer:B

Explanation:

because amino acid is the only best choice to describe methane.

You might be interested in
How are biotic factors in the marine ecosystem responsible for bringing carbon-dioxide into the ocean?
Wewaii [24]

Answer:

Marine ecosystem have biotic organisms like phytoplankton and photosynthetic algae that do photosynthesis and converts the atmospheric carbon dioxide into organic matter most of the carbon dioxide is released when other organisms eat phytoplankton and release the carbon dioxide through respiration.

But some of the algae and phytoplanktons die naturally get down to the bottom of the ocean where they make carbon sink. Some organisms accumulate CO₂ in their exoskeleton that is made up of calcium carbonate.  

Therefore this use of carbon by living organisms in oceans brings carbon dioxide from the atmosphere to oceans. This is why the ocean plays a critical role in the carbon cycle and called carbon sink.

7 0
3 years ago
If you anwer these ill give free brainly give all stars and heart it
Rudik [331]

Answer:

8)

Potential Explosions

Radiation

Radioactive Waste

9)

1st option

10)

Nuclear Fission is not a good source of energy. This is by reason of only 0.7% of the uranium being captured. This is small even if one doesn't mention that only 40% of that 0.7% is converted into usable energy. There are also chances that the power plant could explode during conversion. All of this evidence points to the fact that Nuclear Fission and Nuclear Energy themselves should not be relied on.

11)

Sun and Stars

7)

Uranium and Plutonium

4 0
3 years ago
NEED HELP QUICK PLEASE HELP
kozerog [31]

Answer:

Question 1

D

Question 2

C

Question 3

D

Explanation:

1. An ecosystem is MOST likely to return to its original condition after Tall prairie grass burns after being struck by lightning.

Here is a research paper in which they explained how this happened. (Komarek, E. V. (1971). Lightning and fire ecology in Africa. In Tall Timbers Fire Ecology Conference (Vol. 11, pp. 473-509).)

2. In some national parks, controlled fires are maintained by firefighters. The major reasons for using controlled burns to maintain certain ecosystems is to give nonnative plants a chance to colonize the region.

A recent article provided the insight of this situation (Xanthopoulos, G., Delogu, G. M., Leone, V., Correia, F. J., & Magalhães, C. G. (2020). Firefighting approaches and extreme wildfires. In Extreme Wildfire Events and Disasters (pp. 117-132). Elsevier.)

3. One reason for the change in the Galápagos ecosystem has been the introduction of species that were not on the island before, such as donkeys, goats, cats, dogs, and insects. The introduction of nonnative species MOST likely disrupt the balance of life on the islands due to greater competition for limited food sources.

Scientist said that food competition is actually a struggle to survive in any ecosystem here is the reference paper (Eckhardt, R. C. (1972). Introduced plants and animals in the Galapagos Islands. Bioscience, 22(10), 585-590.)

5 0
3 years ago
Help please, this is for a test and I would like to double check my answer with someone
ehidna [41]

Answer:

It would be B

Explanation:

By doing the punnet square, you get BB, BB ,Bb, Bb, of which 50% are heterozygous.

5 0
3 years ago
If you cant prove a hypothesis, then how do scientist learn?
bearhunter [10]
Hypotheses must be provable. If scientists cannot prove a "hypothesis" right or wrong, they need to change it to a legitimate hypothesis - something you can prove.

If it is proven wrong, they can change certain aspects of it to make a more specific experiment.
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the correct arrangement of the bones of a vertebral column starting from the brain to the legs?
    5·1 answer
  • Which term is used to describe populations that live close enough to interbreed?
    9·1 answer
  • The continents of Africa and South America used to “fit together” like puzzle pieces. About how far back in time would you have
    5·1 answer
  • _____ help fertilize the soil by shedding digestive material
    10·2 answers
  • Deforestation is causing rainforest around the amazon to dry up?<br><br><br> True <br><br><br> False
    11·1 answer
  • Waterproofing wax found on some plant leaves belong to this class of macromoleculesImmersive Reader
    10·1 answer
  • "what part of the antibody's structure determines its class?"
    9·2 answers
  • Which of the following has the most important role regulating global temperatures?
    15·1 answer
  •  Explain the difference in the structure of plant and animal cells<br><br><br><br> please No links
    13·1 answer
  • What are three ways that plants impact the cycle ?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!