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ad-work [718]
3 years ago
5

How is the speed of a rivers flow determined??????

Biology
1 answer:
faltersainse [42]3 years ago
6 0

The speed of a river varies from close to 0 m/s to 3.1 m/s (7 mph). Factors that affect the speed of a river include the slope gradient, the roughness of the channel, and tides. Rivers tend to flow from a higher elevation to a lower elevation. ... Just as speed affects erosion, erosion affects speed.

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What is intramembranous ossification? a. the formation of bone from preexisting hyaline cartilage models b. the formation of bon
Stolb23 [73]

Answer:

c. the formation of bone from within fibrous membranes

Explanation:

On the basis of formation ossification process is divided into two types:

1) Endochondral ossification : The process by which bone is formed from haline cartilage.

2) Intramembranous ossification : The process by which bone is formed by replacing a fibrous membrane and not from cartilage. This type of ossification occurs as follows :

  • An ossification center appears in the fibrous connective tissue membrane.
  • Bone matrix is secreted within fibrous membrane
  • Woven bone and periosteum forms.
  • Bone collar of compact bone forms and red marrow appears.

Hence option c. the formation of bone from within fibrous membranes is the right option

5 0
3 years ago
Energy enters most ecosystems as sunlight. Within an ecosystem, energy is transformed, used, and exits the ecosystem as heat. Dr
postnew [5]
Could you put the terms ???
4 0
2 years ago
Chargaff's Rule. If there is 20% Adenine in the cell, what is the percentage of Thymine, Guanine, and Cytosine found in the same
Ulleksa [173]

Answer:

A= 20%

G= 30%

T= 20%

C= 30%

Explanation:

Recall that the sum of all nitrogenous bases in the DNA nucleotide is equal to 100%. And specific base pairings of Adenine to Thymine (A=T), and Cytosine to Guanine (C=G) must be equal.

So, the percentage of Adenine equal thymine, and that of cytosine equals guanine.

Now, A + T + C + G = 100%

So, if Adenine makes up 20% of the DNA nucleotides, Thymine is also 20%.

Then, 20% + 20% + C + G = 100%

40% + C + G = 100%

C + G = 100% - 40% = 60%

So, divide 60% by 2 to obtain the individual percentage of cytosine and guanine. Each will take 30%

Finally, A= 20%; G= 30%; T= 20%; C= 30%

8 0
3 years ago
Read 2 more answers
Plants have structures that help perform many physiological processes that are required for the plant’s survival. Which of the f
nadezda [96]

Answer:

D

Explanation:

A stomata is responsible for opening up, to allow gas exchange which is needed for photosynthesis .

4 0
3 years ago
In landlocked lakes, water is discharged primarily through _____.
Vesnalui [34]
The correct answer is evaporation.
8 0
3 years ago
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