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3 years ago

Provide one reason to support the creation of national DNA database and one reason to refuse (not allow) it’s creation.

Biology

1 answer:

makkiz [27]3 years ago

8 0

Answer:

The correct answer is -

Support - it is helpful in identifying and locating criminals who do the heinous crime.

Against - It has its own flaws like if the sample increases there would be chances of false matching or error.

Explanation:

The national DNA database is a database that stores DNA profiles of the criminals found from the crime scenes to find and identify criminals like murderers and others. It has been found a very helpful tool for fighting with the crime.

However, there are some flaws and ethical issues with this database as there are chances of error and false matching of DNA match if the sample keeps increasing or there would any manual or system error and innocent can be punished for crime done by others.

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What calcium-rich formation builds the internal skeleton of echinoderms?

lbvjy [14]

The endoskeleton Is a calcium-rich formation

8 0

3 years ago

Which of the following steps is not likely to take place during cellular respiration? (4 points)

kati45 [8]

Answer:

D. Energy is used up.

Explanation:

You're undergoing DURING cellular respiration. Energy can't really be used up DURING cellular respiration as there are changes, break-downs, and activities undergoing stated for answers A, B, and C. These answers are similar and much reasonable during cellular respiration processing than energy being used up.

5 0

3 years ago

A rabbit was killed on a country road. How would bacteria be helpful in this situation?

EastWind [94]

Answer:

The bacteria will break down all the "decaying matter". And by doin that they are getting rid of the rabbits body.

Explanation:

4 0

3 years ago

Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of

WARRIOR [948]

Answer:

The correct answer is C and Engelmann conducted this experiment to prove relationship between algae and the rate of photosynthesis.

Explanation: First we must talk about 3 facts:

1) Prism scatters the white light into different wavelengths.

2) Photosynthesis, 6 carbon dioxide and 6 water molecules are consumed and 6 oxygen and 1 sugar molecule is synthesized using light energy.

6CO2 + 6H2O → C6H12O6 + 6O2

3) Aerobic bacteria breaks down sugar while using oxygen and produces water and carbon dioxide in simplified terms.

So with this experimental setup a researcher can understand the rate of the photosynthesis by increased accumulation of aerobic bacteria near algae in certain wavelengths since they uses oxygen and tend to move close to the oxygen source (see figure). In this experiment there are no ways to measure heat (B), there is no known relation between wavelength of light and aerobic respiration since it can happen even in the dark (A) and finally there are no ways to measure carbon dioxide (D).

5 0

3 years ago

Need help on this plz help!!

nydimaria [60]

Tin, because it has five energy levels with four electrons in the fifth level .

Explanation:

Tin has an electronic configuration as

1s2,2s2,2p6,3s2,...........4d10, 5s2,5p2

They have four valence electrons in their outer shell

Among the four diagrams given Tin is least reactive because the atomic radius of tin is largest among all four options. Due to large atomic radius electronegativity decreases and hence Tin is the least reactive element among Neon, Chlorine, gallium and tin.

The electronegativity of an element is its tendency to complete its octet by attracting electrons towards itself. Also tin is at the lowest place in the periodic table among all the four mentioned elements, its ionization energy is also low hence less electronegative and least reactive.

6 0

3 years ago