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finlep [7]
3 years ago
15

1. A girl rides her bike for 4 hours at a speed of 40 km/h. What distance did she travel?

Biology
1 answer:
kotegsom [21]3 years ago
3 0

Answer:

The girl traveled 160 km.

Explanation:

40 km per hour, she rides her bike for 4 hours: 4x40=160

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From deep to superficial, the order of the strata of the epidermis is corneum - granulosum - lucidum - spinosum - basale. spinos
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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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2 years ago
Do fish have ears? and if so is their any that don't?
Misha Larkins [42]
Fish don't have ears we can see but they have ear parts inside their heads. They pick up sounds in water through their bodies.
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Which blood component makes up 41% of the blood’s volume?
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Red Blood Cells would take up 41% of the blood's overall volume.
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Which statement correctly describes protons?
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They have a positive charge and are present in the nucleus of an atom along with the neutrons.

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Protons have a positive charge.

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