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Irina18 [472]
3 years ago
8

18.) When and by whom was the idea of a spherical Earth first

Biology
1 answer:
Natasha2012 [34]3 years ago
7 0
300 BC by Greek philosophers
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Explanation:

The most distinctive characteristic of leaf mesophyll cells is that they are filled with many chloroplasts

Mesophyll cells constitute the main body of a leaf, occurring between upper and lower epidermis

Typically, the leaves of temperate-zone plants have two layers of mesophyll cells, the palisade mesophyll on the upper side and the spongy mesophyll on the lower side

The palisade mesophyll is a layer of densely packed, columnar cells which contain many chloroplasts, this layer is responsible for most of the photosynthesis of leaves

The spongy mesophyll is composed of large, often odd-shaped, photosynthetic cells separated from one another by large, intercellular spaces, these intercellular spaces apparently facilitate the exchange of photosynthetic gases

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an individual's production of offspring per breeding event or lifetime.

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What was rudolf virchow trying to prove through his work?
geniusboy [140]
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