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
Contact [7]
4 years ago
9

How is most of the oxygen on Earth produced?

Biology
1 answer:
PIT_PIT [208]4 years ago
3 0
Most of this oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. Like all plants, they photosynthesize – that is, they use sunlight and carbon dioxide to make food. A byproduct of photosynthesis is oxygen.
You might be interested in
Which of the following is not directly connected to the nasopharynx?
Bas_tet [7]

Answer:

The correct answer will be option-nasal cavity.

Explanation:

The pharynx is the hollow tube which is divided into three parts: the nasopharynx, oropharynx, and hypopharynx.

The nasopharynx is the upper part of the throat present behind the nose which is  3 to 4 cm long and 2 to 3 cm wide. The nasopharynx connects the mouth to the nose and allows a person to inhale through the nose.

Thus, the option-nasal cavity is the correct answer.

5 0
3 years ago
Read 2 more answers
The area in the brain that plans, anticipates, and controls impulses and is the last part of the brain to mature is the
statuscvo [17]
Prefrontal cortex..........
7 0
3 years ago
Read 2 more answers
One hypothesis about the origin of the building blocks for life is that they were
love history [14]
One hypothesis that is in the scientific community which relates to the origin of the building blocks for life is that they were formed when lightning struck water.
7 0
3 years ago
Read 2 more answers
Can a species diversity increase or decrease after a fire on a grassland
Fantom [35]
Species diversity refers to the number of different species in a community or ecosystem. So for example if you have an ecosystem and there are all different areas of that system like water, trees, and ground levels. obviously monkeys do not live in the water so, if you were to affect the water it would more than likely not affect the monkeys directly even though that water IS part of their ecosystem, but it will affect the other animals, living in that water. so if you were to take out a species in that water you are taking away a part of that ecosystem that makes it diverse. To answer your question, yes the species diversity can decrease after a fire on a grassland.
4 0
3 years ago
Read 2 more answers
The formation and action of angiotensin II can be summarized as follows: It is synthesized either when blood pressure is _______
kvv77 [185]

Answer:

Low,cell,increase,decrease,volume,pressure,Renin,negative

Explanation:

It is synthesized when blood pressure is low or cell division is activated.It causes increase in resistance and decrease in fluid output(which helps to maintain blood volume and blood pressure) and an increase in blood volume(if fluid intake occurs). Consequently,blood pressure increases.This is aided by the release of both renin and aldosterone.As the blood pressure returns within its normal homeostatic levels,both renin release and angiotensin 2 synthesis are decreased by negative feedback.

4 0
4 years ago
Other questions:
  • Microtubules are hollow rods made of a globular protein called tubulin. each tubulin protein is a dimer made of two subunits. th
    12·1 answer
  • Why autotroph are important
    7·1 answer
  • The first principle of diet planning is that the foods we choose must provide energy and the essential nutrients, such as: a. ox
    7·1 answer
  • Please answer as many as possible! Thanks♡​
    9·2 answers
  • In the mitochondrion, small molecules combine with _____ to produce ____ and carbon dioxide.
    10·2 answers
  • Can people with different parents still have traits in common?
    8·1 answer
  • Why would a rough, steep mountain habitat have a higher rate of speciation than a large, open grasslands habitat
    10·2 answers
  • In pea plants, the trait for being tall (T) is dominant and the trait for being short (t) is recessive. Two heterozygous tall pe
    7·1 answer
  • 5. What activities can increase the amount of atmospheric CO2?
    9·1 answer
  • You want brainliest? Then be first!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!