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
Anna35 [415]
3 years ago
11

Most of the Earth's oxygen occurs in the form of minerals in the crust and mantle. The oxygen that is available in the atmospher

e is used primarily by plants, animals, and bacteria to perform cellular respiration.
Why is running out of oxygen still not a real concern?
Biology
1 answer:
Vlad [161]3 years ago
8 0
I think it's because of other organisms produces oxygen

You might be interested in
Name any four materials that we should avoid using to save our environment and why?
juin [17]

Explanation:

. use reusable bags

. print as little as necessary

. recycle

. save electricity

7 0
3 years ago
Read 2 more answers
What is the source, target, and action of erythropoietin
larisa [96]
Kidneys, Bone Marrow, and it Produces red blood cells.
6 0
3 years ago
The leaves at the top of a tree’s canopy are exposed to direct sunlight during the day, and their phytochromes will occur in a h
olya-2409 [2.1K]

Answer:

Explanation:

1)Pfr/Pr

2) Pr

3)far-red

Explanation:

The leaves at the top of a tree’s canopy are exposed to direct sunlight during the day, and their phytochromes will occur in a high *Pfr/Pr* ratio. Meanwhile, the leaves of the same tree at the bottom of the canopy are highly shaded during the day and will likely have a higher proportion of the * ( PHYTOCHROME )Pr *;form of phytochrome present due to exposure to a higher proportion of *FAR RED * light.

Plants make use of the phytochrome system to it's adjust growth based on the seasons. Through phytochrome plants is able to respond to the timing and duration of dark and light periods. At dawn, all the phytochrome molecules present in the leaved are converted to the active Pfr form until sunset this is because the sun is unfiltered, and unfiltered sunlight has high percentage of red light, but lower far-red light, with the help of phytochrome system , the plants is able to compare the length of dark periods over several days.

7 0
3 years ago
Compare a natural meadow with a cornfield in terms of biodiversity. in your answer, be sure to address the: • number of species
Mademuasel [1]

In a cornfield, only one plant species has dominated the area, that is the corn plant. While in a natural meadow, multiple species of plants occurs of different species. The presence of the different types of plants in the meadow will interact more number of insects in it as compared to the corn field. This will lead to more interactions among the different species in a natural meadow. The greater biodiversity of the natural meadow than the cornfield will support it better.

In case of any natural disaster, or a pest attack, all the plants will be killed in a corn field and so will the insects dependent on them, but in a natural meadow, if one plant species is killed by a natural disaster, other will still be alive. Hence, the ability to survive is greater in natural meadow.

5 0
3 years ago
Do all living tissues contain catalase? Claim, evidence, and reasoning
allsm [11]

Yes, the all living tissues contains the catalase, Catalase protects cellular organelles and tissues from damage by peroxide.

<h3>Do all living tissues contain catalase?</h3>

Catalase is a common antioxidant enzyme which is present in all living tissues of an organism and it is responsible for the degradation or reduction of hydrogen peroxide to water and molecular oxygen using either iron or manganese as a cofactor.

Liver, potatoes and other living tissues contain the enzyme catalase. This enzyme breaks down hydrogen peroxide which is a harmful by-product of the process of cellular respiration. If it builds up in concentration in the cells, the cells are adversely affected which leads to serious complications in the organisms.

So we can conclude that all living tissues contains the catalase, Catalase protects cellular organelles and tissues from damage by peroxide.

Learn more about Catalase here: brainly.com/question/1626108

#SPJ1

8 0
1 year ago
Other questions:
  • How are the autotrophic protists different from the heterotrophic protists?
    5·2 answers
  • Which is the best definition of activation energy?
    5·1 answer
  • Centrioles duplicate during the cell cycle. given your knowledge of the cell cycle, when would you guess that the duplication of
    14·1 answer
  • Which of the following statements regarding the genetic material of cells and viruses is true? A. The genes of both viruses and
    10·1 answer
  • 25 POINTS
    11·2 answers
  • How much ug of protein are we suppose to load on sds precast gel?
    15·1 answer
  • Which of the following describes why ice floats?
    15·1 answer
  • Which of the following statements best represents the theory of pangenesis developed by Hippocrates?
    10·1 answer
  • Why does shells have ribs?
    8·1 answer
  • Which trait is most likely an acquired trait in dogs?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!