Answer:
Explanation:
Staining is done for onion cells to visualize the cytoplasm of yellow and white onions because they are not pigmented. The staining of human cheek cells with methylene blue is necessary to stain the nucleus to get clear image of it under microscope because methylene blue binds to negative charge nucleic acids
While for leaf epidermal cells smears, staining is not necessary as they are visible under light microscope without staining and they also have pigmented materials inside them such as chlorophyll chloroplast. The cork cell is a non-living and have a cell wall whose structure is visible under light microscope.
Pretty sure A: chemical energy from broken bonds is transformed into mechanical energy for muscles
This is false. There are many factors, like climate, fires, pollution, etc.
Explanation:
Carbon dioxide and other greenhouse gases in the atmosphere prevents long wave radiation from leaving the earth and in the process, it raises global temperatures.
- Greenhouse gases helps to maintain the fair balance in temperature on the earth surface.
- They keep the temperature of the earth in balance by preventing it from losing all of the heat it gains.
- Radiation from the sun reaches the surface as short wave radiations.
- When they get absorbed and re-emitted, they produce long wave thermal radiations.
- In the atmosphere, the radiations are cut off and causes warming due to their interaction with greenhouse gasses there
- When the amount of these gases in the atmosphere become more than normal, more heat becomes trapped.
- This leads to an anomalously high surface temperature on earth.
learn more;
Greenhouse emission brainly.com/question/4580761
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Answer:
0.483
Explanation:
The given population is in Hardy-Weinberg equilibrium. If the gene has two alleles, the sum total of the frequencies of these two alleles will be one.
Therefore, the total of the frequency of allele B and frequency of allele b will be 1. f(B) + f(b)=1
If the frequency of allele "B" is 0.59, then the frequency of allele "b" will be=1-0.59= 0.41
The frequency of heterozygous genotype in the population= 2pq
p= frequency of the dominant allele
q= frequency of the recessive allele
So, 2pq= 2 x 0.59 x 0.41 = 0.483
