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
nekit [7.7K]
3 years ago
12

Which of the following is NOT a source of dissolved oxygen in the water?

Biology
1 answer:
lesantik [10]3 years ago
4 0

Answer:

A. humans going underwater and exhaling

Explanation:

The dissolved oxygen in water refers to the amount of oxygen that is found in water. However, there are various ways that oxygen dissolves in a body of water, these includes;

- Photosynthesis of aquatic plants: Oxygen is the waste product of the photosynthetic process carried out by green plants. Hence, when aquatic plants undergo photosynthesis, oxygen from them tend to dissolve into water.

- Diffusion from the atmosphere: Oxygen from air or atmosphere also dissolves in water

- aeration as water moves over rocks and debris, and from wind and waves

However, humans do not exhale oxygen but carbon dioxide, hence, it is not a source of dissolved oxygen

You might be interested in
Jane filled one transparent bottle and one brown bottle of the same capacity with pond water. She kept the first bottle in sunli
Setler [38]
<span>Jane's observation will be that in the transparent bottle, the algae and small plants present in the pond water release oxygen during photosynthesis, while in the dark bottle, photosynthesis doesn’t occur due to darkness. Therefore, oxygen in the transparent bottle is more than that in the dark bottle. In photosynthesis, photosynthesizing organisms, such are algae and small plants, use carbon dioxide and water and convert it into glucose and oxygen in the present of sunlight. Therefore, organisms in the transparent bottle can perform photosynthesis and consequently release oxygen. However, this is not the case with the dark bottle that cannot transmit the sunlight.</span>
3 0
3 years ago
Primary succession ______.
Jet001 [13]
C) Occurs in areas without soil.
Primary succession occurs in lifeless areas in which <span>soil that is incapable of sustaining life is formed due to lava, sand dunes, and </span><span>rocks left from a retreating glacier.</span>
4 0
3 years ago
You disrupt all hydrogen bonds in a protein. what level of structure will be preserved? primary structure secondary structure te
arlik [135]

The protein structures can be classified into four levels, namely the primary structure, secondary structure, tertiary structure, and quaternary structure. The primary structure is the simplest  of all the structures. When all the hydrogen bonds are disrupted, the secondary, tertiary and the quaternary structures gets disrupted, which leads the protein to the most simplest structural form, that is the primary structure. In this structure, the a carbon atom is bonded to hydrogen atom, carboxyl group, amino group, and an 'R' group.

6 0
3 years ago
What is the main reason that species are being lost to extinction?
Blizzard [7]
The main reason for the species extinction is for the ecological changes.
4 0
3 years ago
The researchers observed a random sample of mating pairs. The spiders had all been identified and measured before the mating occ
pentagon [3]

Answer:

Null hypothesis: male and female spiders organized in mating pairs don't differ significantly in respect to body length

Alternative hypothesis: male and female spiders organized in mating pairs exhibit significant differences in respect to body length

The application of one statistical test in order to obtain one p-value (probability value) may provide useful evidence to support the alternative hypothesis (or reject it).  

The inference procedure uses the information collected from the sample in order to obtain one conclusion.  Frequentism is a type of inference procedure that can be used to test a hypothetical test case, which is here represented by male and female spiders organized in mating pairs.

8 0
3 years ago
Other questions:
  • What are two possible uses of genetic engineering
    13·1 answer
  • This marine ecosystem is the most diverse of all the marine ecosystems. At least one quarter of all ocean species depend on it f
    8·1 answer
  • The enzyme that unwinds a segment of the dna molecule is
    11·1 answer
  • 2.   When an animal receives a vaccine, about how long will it take before the animal's immune system will protect the animal fr
    15·2 answers
  • Is this correct...? I need help..
    8·1 answer
  • Sieve tube members better conduct sucrose by ______.
    15·1 answer
  • Which is a key component of the energy molecule ATP?
    10·1 answer
  • How many kingdoms are there in the classification system?<br><br> 3<br> 4<br> 5<br> 6
    5·2 answers
  • (GIVING BRAINLIEST!!)
    12·1 answer
  • What is the site of cellular respiration ?​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!