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Alexus [3.1K]
3 years ago
10

Nearly all of the oxygen carried by blood is bound to _____ an iron-containing protein that gives red blood cells their color.

Biology
1 answer:
stira [4]3 years ago
6 0
Most of the oxygen carried by blood is bound to hemoglobin an iron containing protein which also gives red blood cells their distinctive red colour
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3 years ago
Explain /Define About Epidermis In Plant According To Class 9th<br>Plz Answer It Guys​
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<h3 />

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<h3>⇝ <u>Epidermis</u> :</h3>

Protective tissues includes epidermis & cork. Epidermis is basically a simple permanent tissue, protective in function. It forms one-cell-thick covering over all the parts of plant.

<h3>⇝ <u>Characteristics of Epidermis</u> : </h3>
  • Epidermis is formed of living cells, arranged in a single layer.

  • In aerial parts, epidermis is covered with a waterproof and noncellular waxy covering called cuticle.

  • Cells form a continuous layer, but in leaves epidermis has small openings called stomata.

  • Each stoma is guarded by a pair of bean-shaped guard cells which govern opening & closing of stomatal aperture.

<h3>⇝ <u>Functions of Epidermis</u> :</h3>
  • Epidermis protects the underlying tissues from mechanical injury, chemicals & infection.

  • Cuticle of epidermis protects against water loss & desiccation. It checks the rate of transpiration & evaporation and prevents wilting.

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8 0
2 years ago
What does head mean in frog
Vilka [71]
An individuals head with the similarity of a frog mind or has no throat.



6 0
3 years ago
certain substances are placed in the beaker in given picture if the following items are placed in a water filled beaker then sta
Yuliya22 [10]

Answer:

1. gravel of the sand: a part is dissolved and the remainder is grouped at the bottom of the beaker.

2. drop of sunflower oil: It is not absorbed and heaps on the surface of the water contained in the beaker.

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Gravel of the sand is a polar substance. This means that this substance has the ability to dissolve and mix with water in a system in which both were placed together, such as a beaker, for example. However, the beaker limits the amount of water, which limits its ability to dissolve polar substances. Therefore, depending on the quantity, the gravel of the sand, when placed in a beaker with water, will dissolve, in parts, what is not dissolved will accumulate in the bottom of the beacker, because the gravel of the sand is denser than the water.

With the drop of sunflower oil the exact opposite happens. This is because drops of oil are nonpolar substances, which means that they do not have the ability to be dissolved in water. This means that when dropped into the beaker with water, the drop of sunflower oil will not dissolve, but will pile up on the water surface, because it is less dense than water.

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3 years ago
Help on number 2. <br> I think it's A but I'm not sure. Thanks!
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Yes it is also A!!:)
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