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serg [7]
3 years ago
6

How can changes on earths surface affect changes below surface

Biology
1 answer:
ankoles [38]3 years ago
3 0

Answer:

There are several changes that occur on the earth's surface but also affects the changes below the surface, some of them are as follows:

  • When rainfall occur on the sandy surface on earth, it looses the soil under the surface and can cause landslides.
  • Imbalance in the food chain above or on the earth surface can affect the nutrient quantity below the surface that is essential for soil bacteria and other microorganisms.
  • Deforestation can also loosen the soil and soil under surface can shift its position.
  • Use of chemicals on agriculture surface can lead to change the fertility of soil below the surface.
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A scientist measures the weight of two different animals one is 250 grams and the other is 330 grams in milligrams what is the d
ASHA 777 [7]
For the first animal: 250x1000=250000 mg

for the second animal: 330x1000=330000 mg

to find the difference: 330000-250000=80000 mg (which is your final answer)
6 0
4 years ago
What are the four types of macromolecules, their bulding blocks, and their main functions?
OleMash [197]
Carbohydrates: Molecules that provide energy/ fuel and build structures in the body. Example: Sugar. Starch, Cellulose. Building Blocks. Monosaccharides

Lipids:Molecules that store energy and regulate the body's metabolic processes. Building Block: Fatty Acids and Glycerol. Examples: Fats, Steroids, Cholesterol

Proteins: Molecules that provide structural support, cell communication, storage transport, movement, and defense. Building Block: Amino Acids Examples: Enzymes, Structural Components

Nucleic Acids: Molecules that enable living organisms to reproduce genetic information and pass them from one generation to another. Building Blocks: Nucleotides. Examples: DNA and RNA Building Blocks: 
8 0
3 years ago
The average volume of a red blood cell is 87 μ m 3 . The mean concentration of hemoglobin in red blood cells is 0.34 g ⋅ ml − 1
Dmitrij [34]

Answer:

A)

Concentration of hemoglobin = weight of the hemoglobin / total volume of RBCs

Therefore,

weight of the hemoglobin = concentration of the hemoglobin x Total volume of RBCs

weight of hemoglobin = (8.7x 10⁻¹¹ x 0.34) g

                                     = 2.96 x 10⁻¹¹ g

B)

molar mass of hemoglobin is 64500g/mol.

molar mass (m) = number of moles (n) x M,

∴ n = m/M

so number of moles in 2.96 x 10⁻¹¹ g of hemoglobin with molar mass 64500g/mole

= 2.96 x 10⁻¹¹ / 64500

= 4.5 x 10⁻¹⁶ moles

using Avogadro’s number to calculate the number of molecules from moles.

1 mole = 6.022 x 10²³ molecules

so, 4.5 x 10⁻¹⁶ moles

= 4.5 x 10⁻¹⁶ x 6.022 x 10²³

= 2.71 x 10⁸ molecules

Explanation:

Note: Average volume of a red blood cell = 87 μm³ = 8.7 x 10⁻¹¹ ml

        The mean concentration of hemoglobin in red cells = 0.34g/ml.

4 0
3 years ago
Read 2 more answers
Plz hurry on timed quiz
Bumek [7]

Explanation:

The event that happens in photosystem I is that electrons are transferred to ferredoxin.

<em>Hope this helps, please mark BRAINLIEST.</em>

3 0
3 years ago
Amino acids share a chemical backbone of?
Firlakuza [10]

Answer:

carbon, hydrogen, nitrogen and oxygen

Explanation:

mostly, combination of carboxylic and amine groups

6 0
3 years ago
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