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Greeley [361]
2 years ago
5

The cell theory teaches that _____.

Biology
2 answers:
yan [13]2 years ago
8 0
The cell theory teaches that all living things are composed of one or more cells; the cell is the basic unit of life.
Setler [38]2 years ago
6 0

Answer: The correct answer for the blank is -

Cell is the basic structural and functional unit of all life forms, all living organisms are composed of basic unit called cells, and each cell arise from a previously existing cell.

Explanation -

The Cell theory was proposed by Schleiden and Schwann in the year 1839, according to which -

1) Cell is considered as the basic structural and functional unit of all life forms.

2) All life forms are made up of cell.

3) Every cell arise from a cell that already existed before.

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Give two similarities and two differences between gymnosperms and angiosperms.
kakasveta [241]

<span>Similarities</span> between Gymnospermes and Angiospermes:


<span>·         </span>Having seed-Gymnospermes and Angiospermes are types of plants bear seeds. They belong to a single class known as Spermatophyta. Spermatophyta or seed plants are those <span>plants that produce seeds.</span>

<span>·         </span>Diferentiation- The sporophyte (diploid multicellular stage in the life cycle of a plant) of both,<span> Gymnospermes and Angiospermes,</span> is differentiated into root, stem, and leaves.


Differences between Gymnospermes and Angiospermes:

 

<span>·         </span>Seed-Although both have seeds, differences between them are huge. Gymnospermes have bare, non-encased seeds. The term "gymnosperm"  in Greek means "naked seeds". On the other hand, seeds of Angiospermes are enclosed within an ovary, usually in a fruit.

<span>·         </span>Pollination- In Gymnospermes, the pollination is by wind, unlike most Angiosperms, who use insects, mammals or birds.  Gymnosperm flowers are often difficult to spot because they are not out to attract flying pollinators.

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After sunlight hits photosystem II, which is the best description of what happens?
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D glucose is formed from carbon dioxide

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