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earnstyle [38]
3 years ago
7

Define the word phytoplankton!

Biology
2 answers:
DENIUS [597]3 years ago
7 0

Answer:

plankton consisting of microscopic plants.

Explanation:

What is the purpose of phytoplankton?

Through photosynthesis, phytoplankton use sunlight, nutrients, carbon dioxide, and water to produce oxygen and nutrients for other organisms. With 71% of the Earth covered by the ocean, phytoplankton are responsible for producing up to 50% of the oxygen we breathe.

RSB [31]3 years ago
3 0

Answer:

hello

Explanation:

Phytoplankton are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems. 

have a nice day

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Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check
Alenkasestr [34]

Accordin to Du Toit's list supporting the theory of continental drift, the correct options are A, C, ad D. <em>Fossils of </em><em>Glossopteris</em><em> were discovered on </em><u><em>Africa, Australia, and Antarctica</em></u><em>. </em>

--------------------------------

Before answering the question, let us first review some theoretical frameworks,

• The tectonic plates theory explains the movement of the different plates based on the crust movements.

• The continental drift theory explains how these movements have been taking place for millions of years.

Alfred Wegener was the first one to state the concept of continental drift.

He proposed that once all continents were together a single big continent named Pangea, and with time, they split and separated into many pieces.

The geologist Du Toit published in 1937 a list of 10 pieces of evidence that would support the theory of tectonic plates and continental drift.

Du Toit's list includes evidence of <em>Gondwana glaciation, lithological and structural evidence, plates fitting together, and paleontological evidence</em>.

Paleontological evidence

• Plant and animal fossils distribution suggests the existence of a big unique continent. When reconstructing the supercontinent, the areas where these fossils were found get together in the same supercontinental region.

• Glossopteris (fern) impressions are widely distributed in determined areas of Africa, South America, India, Australia and Antarctica.

• Terrestrial vertebrate fossils also support the theory. The presence of Triassic tetrapods in all continents suggests terrestrial corridors between landmasses.

Finding Glossopteris in Australia, India, South America, Antarctica and Africa suggests that continents were once together, and these species used to live in the same region.

With time, these continents diverged and got separated by the oceans. The region where Glossopteris used to live got divided.

<em>The correct options are A, C, and D. Africa, Australia, Antarctica.</em>

----------------------------------

You can learn more about Glossopteris at    

brainly.com/question/984155

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3 years ago
Help<br> i don’t understand this question
Setler79 [48]
Yeah same mansion that
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Mnenie [13.5K]
Cell wall won’t be found in a animal cell since it’s only there in a plant cell.
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Uranus is which planet from the sun?
Darya [45]

Uranus is the 7th planet from the sun :))

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In which Kingdom are chloroplasts NOT present?
Dimas [21]
Answer:
Fungi

I hope this helped :)
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