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Trava [24]
3 years ago
13

The critical difference between today's global warming and Earth's previous climate changes is that

Biology
1 answer:
matrenka [14]3 years ago
8 0
<span>previous changes in climate were dramatic but very short-lived.

</span>
<span>The issue of whether human activities cause global climate change is indeed a controversial topic. The limitation to climate research that could be overcome through scientific design is "Data from a wide range of time periods must be analyzed." Very powerful, or Super Computers, are required to analyze large amounts of data. The sooner more powerful computers are developed, the sooner data from the wide range of time periods can be analyzed. This will give scientists a better idea of the extent of global warming, if any, and how to prevent it.
</span>
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Do animals need light?
serious [3.7K]
No animals don't need light
5 0
3 years ago
Read 2 more answers
Explain the difference between bactericidal and bacteriostatic antibiotics.
vesna_86 [32]

Answer:

Explanation:

The bacteriostatic antibiotics can be defined as those antibiotics, which prevents the growth of bacteria. These keeps the growth of bacteria in the stationary phase so that bacteria cannot cause harm to the host.

The bactericidal antibiotics can be defined as those antibiotics, which kills the bacteria.

The example of bacteriostatic antibiotic is Tetracycline  that it inhibit the bacteria ribosome production of proteins. This way bacterial growth and reproduction will get restricted.

The example of bacteriocidal antibiotic is polymyxin B. It causes injuries to the plasma membrane of the bacteria which can be lethal for bacteria.  

8 0
3 years ago
On average, activated yeast cells divide once every 120 minutes; that is, each individual cell divides into two individual cells
astra-53 [7]

Answer:

The correct answer is 4,960,000

Explanation:

If a yeast cell divides into two yeast cells in 120 minutes that means a yeast cell needs 2 hours to get double. So according to the question 2 hours ago a yeast colony consisted of 310,000 cells that means the present colony should have 620,000 cells.

So after six hours from now, this population will divide three times in six hours because the generation time of yeast cell is 2 hour and each time the number of cells will double.

Therefore, in first time the number will increase to 1,240,000(620000*2), the second time the number will increase to 2,480,000(1240000*2) and after final division, the number will be 4,960,000(2480000*2).

Therefore after 6 hours from now, the approximate number of yeast cells will be 4,960,000.

3 0
3 years ago
In a tabular form state the sources, functions and deficiency of fat soluble vitamins​
GaryK [48]

Answer and Explanation:

Soluble vitamins are vitamins A, D, E and K.

Vitamin A is easily found in animal foods such as eggs, milk, cheese, meat, among others. It has the function of improving vision, producing antioxidants and improving immunity. its deficiency causes nocturnal tracking and susceptibility to infections.

Vitamin D has the sun as its major source, but it can also be found in fish, seafood, liver, mushrooms and meat. It is important for the growth and strengthening of bones, growth regulation, metabolism, insulin production and strengthening of the cardiovascular, muscular and immune systems. Its deficiency can provoke muscular and bone pains, spasms, intense weakness and calcium deficiency.

Vitamin E has many sources, among which we can mention wheat, vegetable oils, nuts, sunflower seeds, bananas, soybeans, egg yolks, almonds, eggs, spinach, lettuce, among others. Its main function is to act as a powerful antioxidant, slowing premature aging and diseases such as cancer, Parkinson's and cataracts. Its deficiency can cause loss of motor coordination, weakening of the muscles and anemia.

Vitamin K can be found in lettuce, spinach, mustard, broccoli, cucumber, turnip, asparagus, okra, liver, among others. It is important in blood clotting and calcium fixation. Its deficiency can cause defective clotting and bleeding.

6 0
3 years ago
Were you able to identify a cell undergoing cytokinesis in an onion cell? Explain.
Trava [24]

Answer:

Mitosis and meiosis are different types of cell division, and although they are first ... One could be forgiven for the assumption that the classic 'onion root tip squash' ... magnification using the eyepiece and objective lens, you will need to be able to ... about how the cells were being used, and had been given no explanation, ...

Explanation:

3 0
3 years ago
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