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kenny6666 [7]
3 years ago
15

Why are scientists concerned about the depletion of the ozone levels in the stratosphere?

Biology
2 answers:
tiny-mole [99]3 years ago
7 0
Because they are scientists...that’s what they do.
Andreyy893 years ago
4 0
Such deterioration allows large amounts of ultraviolet B rays to reach Earth, which can cause skin cancer and cataracts in humans and harm animals as well.
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Certain substances pass from the blood in the glomerular capillaries into the ultrafiltrate under normal circumstances. Other su
mafiozo [28]
Normal:
Glucose
Rbc
NaCl
Amino acid
Plasma

Abnormal:
Albumin (protein)
Wbc

Remember that only small molecules can pass from the blood in the glomerular capillaries and this is cause they have thin walls
6 0
3 years ago
The diagram to the right shows homologous chromosomes during
snow_lady [41]

Answer:

Explanation:

Crossing over in which alleles are exchanged

6 0
2 years ago
Which statement is true about nuclear decay
Readme [11.4K]

Answer:

Nuclear decay rates are constant

Explanation:

Spontaneous decay of unstable nuclei is a process of a statistical nature, it is not possible to predict with certainty when an individual radioactive nucleus will decay, nor can the decay process be influenced in any way.

Therefore, the half-life of radionuclides (specific for each radionuclide) is defined as the time period in which half of the initial number of radioactive nuclei decays.

The unit of measurement for the radioactivity of the material is the becquerel (Bq) and denotes the number of decays in one second (1Bq = 1 decay / 1 second).

5 0
3 years ago
What is the ph of a substance with a hydroxide{OH] of 10-6
Reptile [31]
POH = - log[OH^-]
pOH = - log[10^-6]
pOH = - (-6)
pOH = 6

knowing the ionization equation between pH and pOH in a solution at T = 25 degrees Celsius.

pH + pOH = 14
pH = 14 - pOH
pH = 14 - (6)
pH = 8.

I believe the pH of a substance with 10^-6 M of OH, would be 8.
8 0
3 years ago
Which of the following determines the specificity of a DNA probe?
kiruha [24]

Answer:

Complementary base pairing

Explanation:

DNA probes are the single stranded stretches of nucleotides that are complementary to the original strand. DNA probes are used in various molecular technologies like polymerase chain reaction and DNA finger printing.

DNA probes can only hybridize with the specific complementary base pairs. Hence, complementary base pairing determines the specificity of DNA probe.

Thus, the correct answer is option (D).

5 0
3 years ago
Read 2 more answers
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