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gayaneshka [121]
2 years ago
15

Recognize the role early cells played in shaping life on Earth

Biology
1 answer:
ki77a [65]2 years ago
4 0

Answer:

Present-day cells evolved from a common prokaryotic ancestor along three lines of descent, giving rise to archaebacteria, eubacteria, and eukaryotes.

Changed the composition of the oceans. Most of the iron was precipitated out by early life.

Changed the composition of the atmosphere.  Oxygen became available in abundance.

Explanation:

mark as brainliest pls

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As energy is transferred through
vfiekz [6]

As energy is transferred through  an ecosystem, not all trophic  levels receive the same amount.  The marine ecosystem consists of primary producers like phytoplanktons; primary consumers like zooplanktons, krill; secondary consumers like leopard seals; and tertiary consumers like killer whales.

Explanation:

In an oceanic or marine ecosystem,  the leopard seals are secondary consumers. They basically feed on the primary consumers. They are eaten up by the tertiary consumers. The prey animals of leopard seal includes primary consumers like small fishes, zooplanktons, coral polyps, krill etc. The energy level in the food web increases in a top to down pattern. The producers which occupy the base level will be with high energy and going up the food web, the energy will decrease subsequently. Leopard seals are huge and eat

8 0
3 years ago
What all the answer to this image
ohaa [14]

The answers would be wind speed, air pressure, and wind direction.

Wind speed and air pressure are necessary to show how fast the windmill is going, and the wind direction is necessary to show which direction the windmill is going.

5 0
3 years ago
If an object has a volume of 32 ml and the mass of 146g what is the density?
True [87]
The density uses this equation :

D = m ÷ v

D (Density)
M (Mass)
V (Volume)

⓵
Replace your numbers in the equation :

D = m ÷ v

D = 146 ÷ 32

D = 4,5625

D ⋍ 4,56
3 0
3 years ago
What is pyrenoid?<br><br>good morning ​
Mariana [72]

Answer:

The pyrenoid, a dense structure inside or beside chloroplasts of certain algae, consists largely of ribulose biphosphate carboxylase, one of the enzymes necessary in photosynthesis for carbon fixation and thus sugar formation. Starch, a storage form of glucose, is often found around pyrenoids.

4 0
3 years ago
Which of the following is likely to form the greatest number of bonds?
balandron [24]

Answer is Nitrogen, atomic number 7

The atomic number of nitrogen is 7. Hence, the number of electrons in the nitrogen atom is 7. In the nitrogen, valance electrons are 3 in number in 2P orbital. Its valency is 3. Therefore, it can make three bonds with other elements which is highest among the given options.

4 0
3 years ago
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