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lina2011 [118]
3 years ago
13

What is an example of a gradual change on the earth's surface? A. canyon formation B. mudslide C. volcanic eruption D. lightning

strike
Biology
2 answers:
Katarina [22]3 years ago
6 0
A. Canyon formation
valina [46]3 years ago
3 0
This would be A. Canyon formation
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C) What does this cladogram tell you about the evolutionary relationship of the traits of jaws
schepotkina [342]

Answer:

In biology, a cladogram can be described as a diagram which shows evolutionary relationships among different organisms. A cladogram shows which organisms share evolutionary history and which organisms are more closely related to one another.

<em>The cladogram in the above picture shows that the limbs originated after the jaws. </em>

The cladogram shows that amoeba was a common ancestor to sponges, earthworms, salmon, lizards, kangroo and cats.

8 0
3 years ago
What skills and knowledge do you hope to gain from your proposed study programme?​
Dennis_Churaev [7]

Answer:

As my study programme is concerned with the field of biotechnology, I hope that by the end of the proposed study programme, I will be able to gain knowledge about the molecular tools and the concepts and trends in genome editing. I shall be able to perform techniques such as PCR, gel electrophoresis, cell culturing easily. I would be able to grasp better knowledge in the fields of plant biotechnology, animal biotechnology, Industrial biotechnology and marine biotechnology.

4 0
3 years ago
Do we use fusion in real life? Why or why not?
Juli2301 [7.4K]

Answer:

Yes..? Kind of.

Explanation:

Fusion is the combination of lighter nuclei into heavier nuclei. Yes, this is seen in nature; the sun. The sun is an example of fusion. However, on earth, no. To fuse 2 nuclei, you need extreme temperature and extreme pressure to fuse them together because the nuclei are the same charges. So, yes, but not really?

3 0
3 years ago
Peptidoglycan is a polymer of millions of N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM) sugars based on glucose molec
MA_775_DIABLO [31]

Answer:

NAG, short amino acid chains,NAM, lipid and proteins.

Explanation:

The cell wall is the outer covering of the cell lies on the adjacent of the plasma membrane. The cell wall is present in the archaea, bacteria, plants, fungi and absent in the animal cells.

As the inofrmation given in the question, the cellwall consists N-acetylmuramic acid (NAM) and N-acetylglucosamine (NAG). These sugar residues helps n the cross linking with the proteins. The lipids and proteins are the important component of the cell membrane that maintains the shape and function of the cellwall.

Thus, the answer is NAG, short amino acid chains,NAM, lipid and proteins.

3 0
3 years ago
Compare and contrast the mechanisms of getting material across the plasma membranes of cells. Tells me what the mechanisms are i
stepladder [879]

Answer:

Materials get transported from the cell by some mechanisms such as Active Transport, Passive Transport, Diffusion, etc.

Explanation:

Active Transport :

It is a process by which, materials are transported from the extracellular membrane to the intracellular membrane with the help of ATP. It has a few types :  

Primary Active Transport :  

This system is standing upon the sodium-potassium pump. It moves out   Na⁺ from the cell and allows the entry of K⁺ into the cell. In this process ATP is a source of energy. E.g, Sodium-potassium pump.

Secondary Active Transport :

It is mainly standing upon Primary Active Transport. In this process, the main key point is the concentration gradient. There is already a concentration gradient set up by the primary active transport. This system uses that up and moves other substances against their own gradient concentration. E.g, assuming, there is a high concentration of sodium outside the cell,  if a route such as a channel or a carrier protein is open then sodium ions will move into the cell.  In this transport system, some cotransporters are used who move in the sodium ion into the sodium gradient.  

Passive transport :

It is a process by which, substances cross the plasma membrane without acquiring any energy from the cell. Here, no energy is needed because the substances are moving from higher concentration to its lower concentration. E.g, cell membrane or plasma membrane works as a permeable or semipermeable membrane.  

Diffusion :

It is the movement of a substance across a membrane, due to the concentration gradient, without any help from other molecules. E.g, movement of the gaseous molecule from cell to cell.

8 0
3 years ago
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