All categories

9 months ago

Which pathway is the foundation for the majority of ecosystems and food chains on earth?

Physics

1 answer:

maw [93]9 months ago

6 0

Photosynthesis is the foundation of majority of ecosystems and food chains on earth .

What is photosynthesis ?

Photosynthesis is a process by which green plants , algae and certain bacteria turn sunlight ,carbon dioxide and water into food (sugar) and oxygen.

In this process light energy converted into chemical energy ,which is later used to fuel cellular activities .

Equation of photosynthesis :

6CO2 + 6H2O —> C6H12O6 + 6O2

Photosynthesis depends upon the factors like light intensity, the concentration of carbon dioxide ,temperature, water, and pollution .

photosynthesis takes place in the cell organelles called chloroplasts . these organelles contains a green coloured pigment called chlorophyll, which is responsible for the characteristic green colouration of the leaves.

What is ecosystem ?

An ecosystem is defined as a community of lifeforms in concurrence with components , interacting with each other .

It is the functional and structural unit of ecology where living organisms interact with each other and the surrounding environment .it is a chain or interaction between organisms and their environment.

Ecosystem term was first coined by A.G Tansley in 1935.

The structure of an ecosystem is characterised by the organisation of both biotic and abiotic components .

What is food chain?

A food chain refers to the order of events in an ecosystem ,where one living organism eats another organisms and later that organism is consumed by another larger organisms .the flow of nutrients and energy from one organism to another takes place at different trophic levels .ecosystem also explains the feeding pattern between living organisms.

Every levels of food chain is known as trophic level .

Food chain has 4 major parts like sun ,producers ,consumers,and decomposers.

Learn more about Photosynthesis here

brainly.com/question/28197260

#SPJ4

You might be interested in

1) Momenum is

adelina 88 [10]

Answer:

momentum formula = Mass × Velocity

3 0

3 years ago

*15 points*

Svetradugi [14.3K]

Same as the other person most likely would be 20 times louder as your answer

5 0

2 years ago

B Minerals must be solid, have an orderly atomic structure, have a recognized chemical composition, be naturally occurring, and

zubka84 [21]

Answer:

Minerals must be solid, have an orderly atomic structure, have a recognized chemical composition, be naturally occurring and <u>inorganic in origin</u>.

Explanation:

6 0

3 years ago

What evidence supports the ages of our planets, moon, sun, and asteroids

Pie

It is indeed true that scientists have known about the background radiation (commonly known as the Cosmic Microwave Background) since the early 60s. It was first discovered quite by accident by Penzias and Wilson working at Bell Labs, who detected it as an unexplainable interference in their precision radio equipment. When people finally figured out exactly what it was they were seeing, they won the Nobel Prize for their discovery. Only a few years before, George Gamow had predicted that if the Big Bang theory were correct, we should observe just such a background radiation. The CMB is not the only evidence in favor of the Big Bang, but it is one of the most important. It is a natural consequence of the theory, and is pretty unexplainable in steady-state cosmology.

The 15-20 billion year number comes not from the CMB, but rather predominantly from measurements of nearby and distant galaxies, particularly their rates of expansion away from us. We find that the distance to a galaxy is proportional to its recessional velocity. The constant of proportionality is the Hubble Constant, H, which turns out to be (approximately) the reciprocal of the age of the universe. So we measure the age by measuring recessional velocities. T = 1/H is only true, however, if the universe is not significantly accelerating or decelerating its expansion rate. If the rate of expansion is rapidly accelerating, the universe may be older than 1/H = 15 billion years, give or take. Such an acceleration would be caused by a large value of the Cosmological Constant, a sort of anti-gravity force predicted by General Relativity. There is some evidence that this might be the case.

So finally, yes, the age of the universe, being based on the empirical determination of H, is based on the observed evidence.

6 0

3 years ago

Three small balls of the same size but different masses are hung side-by-side in parallel on the strings of same length. They to

andrey2020 [161]

Answer:

m1/6 ( c )

Explanation:

since all the balls starts having the same momentum after the two collisions we will apply the principal of conservation of energy

After first collision

m1v = m1v1 + m2v2 --- ( 1 )

After second collision

m2v2 = m2v2 + m3v3 ---- ( 2 )

combining equations 1 and 2

m1v = m1v1 + m2v2 + m3v3 ----- ( 3 )

All balls moving at the same momentum ( p ) = m1v1 = m2v2 = m3v3

note ; 3p = m1v ∴ m3 = $\frac{m1v}{3v3}$ ----- ( 4 )

applying conservation of energy

3v = v1 + v2 + v3 ------- ( 5 )

also 3m1v1 = m1v = v1 = v/3 =

v2 + v3 = 8/3 v ----- ( 6 )

next eliminate V3 for equation 6 by applying conservation of energy and momentum

m1 = 2m2 ------ ( 7 )

now using p1 = p2 = m1v1 = 1/2 m1v1 hence v2 = 2v1 where v1 = 1/3 v

hence ; v2 = 2/3 v ------- ( 8 )

solving with equation 6 and 8

v3 = 2v ------ ( 9 ) ∴ v/v3 = 1/2 ---- ( 10 )

solving with equation 9 and 10

m3 = m1/3 * 1/2 = m1/6

8 0

3 years ago