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Dmitrij [34]
3 years ago
10

Microscopic organisms with calcium carbonate shells are called .

Biology
2 answers:
forsale [732]3 years ago
8 0
Nannoplankton would be the answer. (btw they are unicellular)
Mashcka [7]3 years ago
7 0

Foraminifera is a a single-celled planktonic animal with a perforated chalky shell through which slender protrusions of protoplasm extend. Most kinds are marine, and when they die, their shells form thick ocean-floor sediments.

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From deep to superficial, the order of the strata of the epidermis is corneum - granulosum - lucidum - spinosum - basale. spinos
kotykmax [81]

Answer:

basale - spinosum - granulosum - lucidum - corneum.  

Explanation:

The order of strata in the epidermis:

  • Basale: it is the deepest stratum. It has one layer of cells called keratinocytes, which are stem cells for the epidermis.
  • Spinosum: The keratinocytes in this layer have spiny shapes. They synthesize cytokeratin and lipids. In this layer, we can also find macrophages.
  • Granulosum: The keratinocytes of the previous layer ascend and synthesize keratohyalin, which is in granules. The keratohyalin helps to join keratin filaments. Also, the cells release the lipids synthesized in the previous layer, and they form a barrier that stops dehydration.
  • Lucidum: it is only on thick skin, like the one in the sole of the feet. The keratinocytes in this layer have expelled the nucleus and now are dead cells. The keratinocytes have a flat shape and form a thin layer.
  • Corneum: it is the most superficial layer. It is made of dead keratinocytes filled with keratin in their cytoplasm. It is a thick layer that suffers desquamation when new dead cells filled with keratin ascend from the previous layer.

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3 years ago
When the body stops producing enough new blood cells, the risk for infections and uncontrolled bleeding increases. What is the d
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Answer is aplastic anemia
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Why is it important to understand the evolutionary worldview?
vova2212 [387]
Bc you should know i guess
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Which ingredients in MacConkey agar supplies Nitrogen?
kifflom [539]
The ingredients in MacConkey agar supplies that supplies nitrogen are enzymatic digest of Gelatin, Casein and Animal tissue.
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Why are some planets harder to see than others planets in the solar system
arsen [322]

Answer:

Because they are farther away

Explanation:

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